Gregory Dunigan, D.M.D.
NPI 1902905391 · Dentist · Petersburg, IN
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Dunigan, D.M.D. is a Dentist provider in Petersburg, IN (NPI 1902905391).
Provider details
- NPI number
- 1902905391
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- D.M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12009114A (IN)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 72 | 62 |
| Cephalexin | 14 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 11 | — |
| Amoxicillin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Dunigan's NPI number?
- Gregory Dunigan's National Provider Identifier (NPI) is 1902905391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Dunigan's specialty?
- Gregory Dunigan is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Gregory Dunigan located?
- Gregory Dunigan's practice location on file with NPPES is 717 S 9th St # 296, Petersburg, IN 47567-1820.
- What is Gregory Dunigan's phone number?
- The practice phone number listed in the NPPES registry for Gregory Dunigan is (812) 354-8300.
- Does Gregory Dunigan accept Medicare?
- Gregory Dunigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Dunigan's NPI active?
- Yes — Gregory Dunigan's NPI (1902905391) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.