Michael Oconnor, MD
NPI 1386753317 · Endocrinology, Diabetes & Metabolism Physician · Pinole, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Oconnor, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Pinole, CA (NPI 1386753317).
Provider details
- NPI number
- 1386753317
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 00A446530 (CA)
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
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
415 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 347 | $145 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 37 | $3 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $104 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 11 | $246 |
Typical Medicare-allowed amounts for these services range $3–$246 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 288 | 67 |
| Metformin Hcl | 195 | 62 |
| Semaglutidebrand: Ozempic | 129 | 25 |
| Atorvastatin Calcium | 116 | 36 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 98 | 28 |
| Amlodipine Besylate | 88 | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2016-08-30
Frequently asked questions
- What is Michael Oconnor's NPI number?
- Michael Oconnor's National Provider Identifier (NPI) is 1386753317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Oconnor's specialty?
- Michael Oconnor is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Oconnor located?
- Michael Oconnor's practice location on file with NPPES is 1690 San Pablo Ave, Pinole, CA 94564-2078.
- What is Michael Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Michael Oconnor is (925) 753-1986.
- Does Michael Oconnor accept Medicare?
- Michael Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Oconnor's NPI active?
- Yes — Michael Oconnor's NPI (1386753317) is active in the NPPES registry as of the last update on 2016-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.