Doctor profile · Federal record
Dr. Gary Diperna, DO
Nephrology Physician (CMS: Nephrology) · Portland, ME
- NPI 1649567579
- Accepts Medicare
- MIPS 74.3 / 100 · 2023
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1600B Congress St
Portland, ME 041022124
(207) 774-5222
fax (207) 761-4433
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- November 30, 2016
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Maine #DO2511
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649567579. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
604
Distinct HCPCS
9
Medicare allowed
$110,281
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 206 | 80 | $331 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 117 | 51 | $74 | |
90935 |
Hemodialysis procedure with physician evaluation | 74 | 31 | $68 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 65 | 23 | $102 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 37 | 29 | $276 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 35 | 28 | $91 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 31 | 25 | $92 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 23 | 23 | $158 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 16 | 15 | $123 |
In context: peer comparison
Among 11 peers in Portland Nephrology Physician, average services per provider: 52. This provider delivers 12× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
254
Patients
11
Total drug cost
$5,722
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Torsemide | Generic | 31 | 0 | $639 |
| Furosemide | Generic | 29 | 11 | $295 |
| Amlodipine Besylate | Generic | 20 | 0 | $198 |
| Lisinopril | Generic | 19 | 0 | $76 |
| Prednisone | Generic | 19 | 0 | $216 |
| Mycophenolate Mofetil | Generic | 17 | 0 | $1,101 |
| Losartan Potassium | Generic | 15 | 0 | $294 |
| Chlorthalidone | Generic | 14 | 0 | $310 |
| Metoprolol Tartrate | Generic | 14 | 0 | $72 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 14 | 0 | $147 |
Hospital affiliations
Frequently asked questions
What is Dr. Gary Diperna's medical specialty?
Dr. Gary Diperna practices Nephrology Physician in Portland, ME.
Where does Dr. Gary Diperna practice?
Dr. Gary Diperna practices at 1600B Congress St, Portland, ME 041022124. Office phone: 2077745222.
What is Dr. Gary Diperna's NPI?
Dr. Gary Diperna's National Provider Identifier (NPI) is 1649567579, issued by NPPES.
Does Dr. Gary Diperna accept Medicare assignment?
Yes. Dr. Gary Diperna accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Diperna commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hemodialysis procedure with physician evaluation (HCPCS 90935). Source: CMS Medicare Physician & Other Practitioners file.