Gary Diperna, DO
NPI 1649567579 · Nephrology Physician · Portland, ME
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Diperna, DO is a Nephrology Physician provider in Portland, ME (NPI 1649567579).
Provider details
- NPI number
- 1649567579
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- DO2511 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
563 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 211 | $328 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 97 | $73 |
| Hemodialysis Procedure With Physician Evaluation90935 | 85 | $63 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 37 | $273 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $91 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 26 |
| Furosemide | 22 |
| Torsemide | 21 |
| Prednisone | 20 |
| Apixabanbrand: Eliquis | 20 |
| Mycophenolate Mofetil | 15 |
| Famotidine | 13 |
| Amlodipine Besylate | 13 |
| Calcium Acetate | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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
Additional practice locations (1)
- 35 Medical Center PkwyAugusta, ME 04330-8160Phone: (207) 626-6480Fax: (207) 626-6481
Registry dates
- Enumerated
- 2011-06-29
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Gary Diperna's NPI number?
- Gary Diperna's National Provider Identifier (NPI) is 1649567579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Diperna's specialty?
- Gary Diperna is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Diperna located?
- Gary Diperna's practice location on file with NPPES is 1600b Congress St, Portland, ME 04102-2124.
- What is Gary Diperna's phone number?
- The practice phone number listed in the NPPES registry for Gary Diperna is (207) 774-5222.
- Does Gary Diperna accept Medicare?
- Gary Diperna is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Diperna's NPI active?
- Yes — Gary Diperna's NPI (1649567579) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.