Doctor profile · Federal record
Dr. John Konstantin, M.D., M.P.H.
General Practice Physician (CMS: General Practice) · Oakland, CA
- NPI 1548415979
- Accepts Medicare
- 20 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2584 Macarthur Blvd
Oakland, CA 946022928
(510) 530-5400
fax (510) 530-2921
Credentials & registration
- NPI registered
- November 2008 — 18 yrs on file
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 208D00000X — NUCC code
- State license (1)
- California #A102896
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1548415979. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
279
Distinct HCPCS
3
Medicare allowed
$31,306
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 239 | 60 | $107 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 24 | 23 | $134 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 16 | 16 | $153 |
In context: peer comparison
Among 2 peers in Oakland General Practice Physician, average services per provider: 413. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$35
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Qiagen, LLC | 2 | $34.96 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
536
Patients
83
Total drug cost
$9,998
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl | Generic | 64 | 13 | $982 |
| Atorvastatin Calcium | Generic | 62 | 14 | $927 |
| Amlodipine Besylate | Generic | 51 | 16 | $679 |
| Glipizide | Generic | 50 | 0 | $905 |
| Lisinopril | Generic | 49 | 13 | $900 |
| Omeprazole | Generic | 40 | 13 | $626 |
| Diclofenac Sodium | Generic | 29 | 0 | $763 |
| Losartan Potassium | Generic | 29 | 0 | $578 |
| Penicillin V Potassium | Generic | 26 | 0 | $186 |
| Ibuprofen | Generic | 23 | 0 | $163 |
Hospital affiliations
Frequently asked questions
What is Dr. John Konstantin's medical specialty?
Dr. John Konstantin practices General Practice Physician in Oakland, CA.
Where does Dr. John Konstantin practice?
Dr. John Konstantin practices at 2584 Macarthur Blvd, Oakland, CA 946022928. Office phone: 5105305400.
What is Dr. John Konstantin's NPI?
Dr. John Konstantin's National Provider Identifier (NPI) is 1548415979, issued by NPPES.
Does Dr. John Konstantin accept Medicare assignment?
Yes. Dr. John Konstantin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Konstantin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.