Gregory Penner, M.D.
NPI 1275610198 · Specialist · Brunswick, ME
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Penner, M.D. is a Specialist provider in Brunswick, ME (NPI 1275610198).
Provider details
- NPI number
- 1275610198
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12949 (ME)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
634 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 118 | $66 |
| Removal of Impacted Ear Wax69210 | 83 | $31 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 80 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 63 | $98 |
| Exam of Ear Using a Microscope92504 | 51 | $9 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 104 | 59 |
| Azelastine Hcl | 57 | 25 |
| Dexamethasone Sodium Phosphate | 36 | 17 |
| Fluticasone Propionate | 24 | — |
| Methylprednisolone | 21 | — |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 20 | 16 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2015-06-22
Frequently asked questions
- What is Gregory Penner's NPI number?
- Gregory Penner's National Provider Identifier (NPI) is 1275610198, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Penner's specialty?
- Gregory Penner is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Gregory Penner located?
- Gregory Penner's practice location on file with NPPES is 331 Maine St Ste 4, Brunswick, ME 04011-3359.
- What is Gregory Penner's phone number?
- The practice phone number listed in the NPPES registry for Gregory Penner is (207) 721-0911.
- Does Gregory Penner accept Medicare?
- Gregory Penner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Penner's NPI active?
- Yes — Gregory Penner's NPI (1275610198) is active in the NPPES registry as of the last update on 2015-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.