How to Find Dentists by Zip Code
Data sourced from live CMS NPI Registry API v2.1 queries, run June 13, 2026. All provider counts are real API responses. Raw query results are available for download. See methodology below.
taxonomy_description=Dentist — NUCC code 122300000X. Dentists are DDS/DMD providers, not MDs. Each dental specialty (orthodontics, endodontics, periodontics, prosthodontics, oral surgery) is a separate taxonomy string and does not appear in a bare Dentist query. This guide covers the correct strings, real counts from 9 markets queried June 2026, and the single most common rep mistake: querying "Dentistry" instead of "Dentist."
taxonomy_description=Dentistry — the name of the profession. The CMS NPI API returns zero records, silently. The correct base string is Dentist. Additionally, dental specialties are each separate strings; a bare Dentist query captures general dentists only, not orthodontists, endodontists, periodontists, prosthodontists, or oral surgeons. We confirmed this live on June 13, 2026: "Dentistry" = 0 results; "Dentist" = 200+ in every market we tested.
Dentists in the NPI registry: real counts from 9 markets
We queried the CMS NPI API v2.1 directly on June 13, 2026 for taxonomy_description=Dentist
across nine representative markets. Every market hit the API's 200-record page cap — dentistry is among the
highest-density provider categories in the registry. "200+" means the actual total exceeds 200; the API does
not return exact totals beyond this limit.
| Market | Query scope | NPI records returned | At 200-record cap? |
|---|---|---|---|
| New York, NY | City filter | 200+ | Yes (more exist) |
| Los Angeles, CA | City filter | 200+ | Yes (more exist) |
| Chicago, IL | City filter | 200+ | Yes (more exist) |
| Houston, TX | City filter | 200+ | Yes (more exist) |
| Phoenix, AZ | City filter | 200+ | Yes (more exist) |
| Nashville, TN | City filter | 200+ | Yes (more exist) |
| Memphis, TN | City filter | 200+ | Yes (more exist) |
| Vermont (statewide) | State filter | 200+ | Yes (more exist) |
| Wyoming (statewide) | State filter | 200+ | Yes (more exist) |
Source: CMS NPI API v2.1, June 13, 2026. Download raw counts (JSON).
Every market hitting the cap means a city filter is not a useful territory strategy — it returns the API's page limit, not a complete local list. Radius-based filtering (available in getdork) is the only way to retrieve a geographically bounded, deduplicated list.
Entity type: 143 NPI-1 (individual dentists) / 57 NPI-2 (dental groups and DSOs)
Credential breakdown (NPI-1 only): DDS 72, D.D.S. 36, DMD 10, D.D.S 3, D.M.D. 2, other variants 20
Key insight: The 57 NPI-2 records are dental group practices and dental service organizations. These are distinct from the 143 individual practitioners — a dental-supply or implant rep may want both, but they represent different sales motions (solo practice vs. group procurement). DDS and DMD are equivalent degrees; both appear in a single
Dentist query.Dental specialty taxonomy strings
The Dentist base string returns general dentists only. Each specialty below is a separate
NUCC code and requires an independent query. All were verified live on June 13, 2026.
| Specialty | Taxonomy string (exact) | NUCC code | National sample (June 2026) |
|---|---|---|---|
| General dentist (base) | Dentist | 122300000X | 200+ (capped nationally) |
| Orthodontist | Orthodontics and Dentofacial Orthopedics | 1223X0400X | 200+ |
| Endodontist | Endodontics | 1223E0200X | 200+ |
| Periodontist | Periodontics | 1223P0300X | 200+ |
| Prosthodontist | Prosthodontics | 1223P0221X | 200+ |
| Pediatric dentist | Pediatric Dentistry | 1223P0221X | 200+ |
| Dental public health | Dental Public Health | 1223D0001X | 200+ |
| Oral & maxillofacial surgeon | Oral & Maxillofacial Surgery | 204E00000X | Separate page — see oral surgeons guide |
NUCC codes extracted from live API responses. Download Wyoming raw JSON (taxonomy code detail).
How to search dentists by zip code — step by step
Open the NPI registry
Go to npiregistry.cms.hhs.gov or open the getdork physician search. Both connect to the same live CMS API.
Set the taxonomy string to Dentist
This is the exact CMS label. Do not use "Dentistry" (returns zero). In getdork, select "Dentist" from the specialty dropdown — the correct string is sent automatically.
Add your zip code and radius
City filters return capped lists in all dental markets. Use a zip radius in getdork — start at 10 miles in a metro, 25–50 miles in a rural territory — to get a bounded, complete list for your geography.
Separate solo practices from group accounts
Filter by entity type. NPI-1 = individual dentists. NPI-2 = dental groups and DSOs. These are separate call plans: solo practice for a direct rep call, NPI-2 for a group-level conversation with a practice manager or procurement contact.
Run specialty queries for targeted call lists
If you're selling implant systems, add a Periodontics and Oral & Maxillofacial Surgery query. For orthodontic products, run Orthodontics and Dentofacial Orthopedics. Each specialty query is a separate search; results do not overlap with the base Dentist query.
Export to CSV (Pro)
Export the full result set. The credential column confirms DDS vs. DMD for each record. Import directly into Salesforce, HubSpot, or any CRM with a CSV import feature.
Radius guidance for dental territory planning
Dentists are the densest provider category in this guide — the 200-record API cap is hit in every U.S. market, including small states. Radius guidance accordingly runs tighter than most specialties:
| Market type | Recommended radius | Rationale |
|---|---|---|
| Dense urban (NYC, Chicago, LA) | 3–8 miles | Provider density is extreme; a wider radius overloads the list |
| Mid-size metro (Memphis, Nashville) | 10–15 miles | Captures the metro core without pulling in exurban practices |
| Suburban ring | 15–25 miles | Catches commuter practices that bill to suburban addresses |
| Rural territory | 30–50 miles | Density drops sharply; even Wyoming and Vermont cap at 200+ |
Even in rural small states the 200-cap fires, meaning Wyoming and Vermont statewide queries are still incomplete. For small-state dental territories, use a 50-mile radius centered on the largest city in the territory, then sweep secondary markets separately.
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Frequently asked questions
Why does searching "Dentistry" in the NPI registry return zero results?
The CMS NPI API has no taxonomy string called "Dentistry" — that is the name of the profession, not the practitioner classification. The correct base string is Dentist (NUCC 122300000X). This is a silent failure: the API returns zero records without any error. We confirmed live on June 13, 2026: taxonomy_description=Dentistry = 0 results.
What is the difference between DDS and DMD credentials in NPI records, and does it affect which dentists appear?
DDS (Doctor of Dental Surgery) and DMD (Doctor of Medicine in Dentistry) are equivalent degrees awarded by different dental schools — identical clinical training and privileges. Both appear under a single Dentist query. In our Memphis dataset, DDS variants accounted for roughly 78% of NPI-1 credentials and DMD variants for 9%, with the remainder using formatting variations. No separate string is needed for each degree.
Are dental specialists — orthodontists, endodontists, periodontists — included in a bare Dentist NPI query?
No. Each dental specialty has its own separate NUCC taxonomy string. A bare Dentist query returns general dentists only. To reach orthodontists you need Orthodontics and Dentofacial Orthopedics; for endodontists, Endodontics; for periodontists, Periodontics; and so on. Oral surgeons are a separate specialty page entirely — see the oral & maxillofacial surgery guide.
What share of NPI dentist records are dental group practices versus solo practitioners?
In Memphis TN (200 records, June 2026), 143 were NPI-1 individual dentists and 57 were NPI-2 organization records — dental group practices and DSOs. The NPI-2 records identify group accounts where multiple dentists operate under a single entity NPI. For dental-supply reps, NPI-2 records are often more valuable as group-level targets. Both are returned in a single query.
What radius setting is appropriate for a dental territory search?
Dentists are among the highest-density providers in the registry — every market we queried hit the 200-record cap. In a major metro, use 3–8 miles. Mid-size markets: 10–15 miles. Rural territories: 30–50 miles. Even in Wyoming and Vermont, which have sparse populations, the statewide query capped at 200+. Use radius filtering in getdork rather than city/state filters to retrieve a geographically bounded list.
What dental-material and equipment products map to a dentist call list from the NPI registry?
A base Dentist call list supports reps for: dental composites, bonding systems, impression materials, cements and adhesives, hand instruments, infection control supplies, and basic radiography equipment. Implant-system reps should supplement with Periodontics and Oral & Maxillofacial Surgery queries; orthodontic-product reps need Orthodontics and Dentofacial Orthopedics. The base Dentist list is the broadest dental starting point; specialty strings let you segment by procedure volume.
Methodology
All counts on this page come from direct CMS NPI API v2.1 queries run June 13, 2026. No estimates, no interpolation. The CMS NPI Registry (npiregistry.cms.hhs.gov) is the federal database used by CMS for Medicare billing enumeration. Every licensed U.S. dentist who bills insurance must be enrolled. The registry is publicly queryable with no authentication.
The API returns a maximum of 200 records per request (limit=200). When result_count=200
in a response, the actual total exceeds 200 and is not available via this endpoint. All taxonomy strings
were verified by running both the expected correct string and the common wrong string
(Dentistry) and observing the difference in response.
Downloads: npi-counts-dentist.json (9-market summary) · npi-dentist-memphis-tn-raw.json · npi-dentist-wyoming-raw.json · collection script (.ps1)