Randolph Clarke, M.D.
NPI 1538187612 · Family Medicine Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Randolph Clarke, M.D. is a Family Medicine Physician provider in Antioch, CA (NPI 1538187612).
Provider details
- NPI number
- 1538187612
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G40037 (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
330 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 | 298 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 18 | $113 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 14 | $18 |
Typical Medicare-allowed amounts for these services range $18–$113 (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 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 236 | 68 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 199 | 37 |
| Levothyroxine Sodium | 183 | 45 |
| Amlodipine Besylate | 155 | 44 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 154 | 38 |
| Metformin Hcl | 140 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Randolph Clarke's NPI number?
- Randolph Clarke's National Provider Identifier (NPI) is 1538187612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Randolph Clarke's specialty?
- Randolph Clarke is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Randolph Clarke located?
- Randolph Clarke's practice location on file with NPPES is 3436 Hillcrest 200, Antioch, CA 94509-6065.
- What is Randolph Clarke's phone number?
- The practice phone number listed in the NPPES registry for Randolph Clarke is (925) 777-1481.
- Does Randolph Clarke accept Medicare?
- Randolph Clarke is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Randolph Clarke's NPI active?
- Yes — Randolph Clarke's NPI (1538187612) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.