Gregg Warren, DO
NPI 1184651366 · Diagnostic Radiology Physician · Troy, MI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregg Warren, DO is a Diagnostic Radiology Physician provider in Troy, MI (NPI 1184651366).
Provider details
- NPI number
- 1184651366
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101011119 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,285 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 503 | $36 |
| X-Ray of Chest, 1 View71045 | 381 | $8 |
| Screening 3d Breast Mammography77063 | 336 | $28 |
| X-Ray of Chest, 2 Views71046 | 192 | $10 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 183 | $28 |
| Diagnostic Mammography of 1 Breast77065 | 177 | $38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 468 Cadieux RdGrosse Pointe, MI 48230-1507Phone: (313) 473-1833Fax: (313) 473-6916
- 36555 26 Mile Rd Ste 3000Lenox, MI 48048-3185Phone: (947) 523-4040Fax: (947) 523-4041
- 36555 26 Mile Rd Ste 1400Lenox, MI 48048-3186Phone: (947) 523-4020Fax: (947) 523-4021
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 898-6509Fax: (248) 898-5490
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2022-07-21
- Certified
- 2022-07-21
Frequently asked questions
- What is Gregg Warren's NPI number?
- Gregg Warren's National Provider Identifier (NPI) is 1184651366, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Warren's specialty?
- Gregg Warren is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregg Warren located?
- Gregg Warren's practice location on file with NPPES is 44201 Dequindre Rd, Troy, MI 48085-1117.
- What is Gregg Warren's phone number?
- The practice phone number listed in the NPPES registry for Gregg Warren is (248) 964-5190.
- Does Gregg Warren accept Medicare?
- Gregg Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregg Warren's NPI active?
- Yes — Gregg Warren's NPI (1184651366) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.