How to Find Radiologists 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=Diagnostic+Radiology — NUCC code 2085R0202X. "Radiologist" returns zero results. Bare "Interventional Radiology" also returns zero — interventional radiologists require the separate string Vascular+%26+Interventional+Radiology (2085R0204X). Radiology is also one of the most hospital-integrated specialties in the registry — expect a meaningful NPI-2 share. This guide covers all five radiology taxonomy strings, real counts from 9 markets, and the entity-type angle that matters for imaging equipment reps.
•
taxonomy_description=Radiologist → 0 results (practitioner title, not a NUCC string)•
taxonomy_description=Interventional+Radiology → 0 results (the CMS IR string has a prefix)•
taxonomy_description=Radiology alone → returns Radiology, Body Imaging and other sub-codes but NOT the main Diagnostic Radiology population in fullUse
Diagnostic+Radiology for diagnostic radiologists. Use Vascular+%26+Interventional+Radiology for IR physicians (the ampersand is required, URL-encoded as %26).
Radiologists 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=Diagnostic+Radiology
across nine markets. Most major cities hit the 200-record cap; smaller states returned complete counts.
| 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 | 138 | No (complete) |
| Wyoming (statewide) | State filter | 94 | No (complete) |
Source: CMS NPI API v2.1, June 13, 2026. Download raw counts (JSON).
Entity type: 183 NPI-1 (individual physicians) / 17 NPI-2 (radiology groups and imaging centers)
NPI-1 credential breakdown: MD 100, M.D. 56, D.O. 5, DO 4, MD PhD 2, others 16
Key insight: The 17 NPI-2 records include radiology groups, academic radiology departments, and free-standing imaging centers. These are group-purchasing entities that typically own the imaging equipment — a separate conversation from the individual-physician reading-room call. For equipment reps, NPI-2 accounts are often the actual procurement decision; NPI-1 records identify the end users who influence the purchase.
Radiology taxonomy strings
All five radiology-type taxonomy strings are separate NUCC codes. All were verified live on June 13, 2026.
| Specialty | Taxonomy string (exact) | NUCC code | National sample (June 2026) |
|---|---|---|---|
| General diagnostic radiologist | Diagnostic Radiology | 2085R0202X | 200+ (capped nationally) |
| Interventional radiologist | Vascular & Interventional Radiology | 2085R0204X | 200+ |
| Neuroradiologist | Neuroradiology | 2085N0700X | 200+ |
| Nuclear radiologist | Nuclear Radiology | 2085N0904X | 200+ |
| Pediatric radiologist | Pediatric Radiology | 2085P0229X | 200+ |
Codes extracted from live CMS NPI API responses. Download Wyoming raw JSON.
How to search radiologists by zip code — step by step
Open the NPI registry
Go to npiregistry.cms.hhs.gov or open the getdork physician search.
Select the right radiology string for your call
Diagnostic reading reps: use Diagnostic Radiology. IR / procedural device reps: use Vascular & Interventional Radiology — do not use bare "Interventional Radiology" (zero results). For neuro imaging or nuclear medicine, use the subspecialty strings above.
Use a zip radius — city filters miss suburban imaging centers
Many radiologists bill from hospital addresses outside city limits. A 25-mile radius in a metro, 50+ miles in rural markets, ensures you capture radiologists at suburban and hospital-campus locations.
Segment NPI-1 vs. NPI-2 for different sales motions
NPI-1 records = individual radiologists (end users, clinical influencers). NPI-2 records = radiology groups and imaging centers (purchasing decision-makers). Both are relevant to an imaging equipment call plan but require different approaches and contacts.
Export to CSV (Pro)
Export includes NPI, name, credential (MD/DO), entity type, practice address, and phone. For group NPI-2 records, the organization name is included — useful for mapping radiology group accounts by name in your CRM.
Radius guidance for radiology territory planning
| Market type | Recommended radius | Rationale |
|---|---|---|
| Dense urban (NYC, Chicago, LA) | 10–20 miles | All cap at 200+; narrow radius targets a workable subset |
| Mid-size metro (Memphis, Nashville) | 25–40 miles | Caps at 200+ city; radius catches suburban hospital campuses |
| Small state (Vermont) | 50 miles from largest city | 138 statewide — full state is manageable in a single sweep |
| Sparse rural (Wyoming) | Statewide or 100 miles | 94 statewide — complete state in one query |
Build your radiology call list from the federal NPI registry. No sign-up required.
Search radiologists by ZIP — free
Frequently asked questions
Why does "Radiologist" return zero results in the NPI registry?
The CMS NPI taxonomy does not use practitioner titles. "Radiologist" is a job description, not a NUCC taxonomy string. The correct string for a diagnostic radiologist is Diagnostic Radiology (2085R0202X). We confirmed live on June 13, 2026: taxonomy_description=Radiologist = 0 results.
What is the difference between Diagnostic Radiology and Vascular & Interventional Radiology in the NPI data?
Separate NUCC codes: Diagnostic Radiology (2085R0202X) covers reading radiologists; Vascular & Interventional Radiology (2085R0204X) covers IR physicians who perform procedures. The same physician may appear under both if enrolled under both subspecialty codes. For an IR equipment rep, query both strings to build a complete picture.
Why do radiologists have a higher NPI-2 share than most specialties, and what does that mean for call planning?
Radiology is heavily group-practice based. Most radiologists work within large radiology groups that hold a group NPI and bill under it. In our Memphis data, 17 of 200 records were NPI-2 radiology groups and imaging centers — these are the purchasing entities for major equipment decisions. NPI-1 records are the individual physicians who influence equipment choice clinically. Both matter to an imaging equipment rep.
Do radiologists bill under a hospital address, and will a city filter miss them?
Yes — radiologists at suburban hospital campuses or free-standing imaging centers bill from those addresses, which may be outside the city boundary. Memphis capped at 200+ with a city filter, but some Memphis-area radiologists at suburban hospitals would only appear in a 25–50 mile radius search. Use zip radius filtering for the most complete territory coverage.
What radiology subspecialties have distinct NPI taxonomy strings?
Five: Diagnostic Radiology (2085R0202X), Vascular & Interventional Radiology (2085R0204X), Neuroradiology (2085N0700X), Nuclear Radiology (2085N0904X), and Pediatric Radiology (2085P0229X). Each requires a separate query. A radiologist who subspecialized may enumerate only under the subspecialty code, not under the base Diagnostic Radiology code.
What imaging and diagnostic device products map to a radiologist call list?
A Diagnostic Radiology call list serves: MRI and CT systems, PACS platforms, contrast agents (iodinated/gadolinium), digital X-ray and fluoroscopy, ultrasound platforms, and mammography equipment. Vascular & IR accounts add: embolization coils and particles, drainage catheters, stent-graft systems, and ablation devices. Nuclear Radiology accounts are key for PET/SPECT systems and radiopharmaceuticals. Neuroradiology accounts are primary targets for advanced brain MRI software and neurointerventional tools.
Methodology
All counts come from direct CMS NPI API v2.1 queries run June 13, 2026. Both zero-result strings
(Radiologist and bare Interventional Radiology) were verified on the same date.
NUCC codes were extracted from the taxonomies[].code field in live API responses.
The API returns a maximum of 200 records per request; "200+" indicates the actual total exceeds 200.
Downloads: npi-counts-radiology.json · npi-radiology-memphis-tn-raw.json · npi-radiology-wyoming-raw.json · collection script (.ps1)