Chetachi Okereke, M.D, M.B.B.S
NPI 1083842199 · Rheumatology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chetachi Okereke, M.D, M.B.B.S is a Rheumatology Physician provider in Walnut Creek, CA (NPI 1083842199).
Provider details
- NPI number
- 1083842199
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D, M.B.B.S
- Sex
- Female
- Sole proprietor
- Yes
- License
- A109220 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 443 | 168 |
| Methotrexate Sodiumbrand: Methotrexate | 318 | 128 |
| Hydroxychloroquine Sulfate | 208 | 99 |
| Colchicine | 83 | 30 |
| Leflunomide | 68 | 32 |
| Tofacitinib Citratebrand: Xeljanz | 56 | 12 |
| Etanerceptbrand: Enbrel | 51 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-26
- Last updated
- 2022-02-11
Frequently asked questions
- What is Chetachi Okereke's NPI number?
- Chetachi Okereke's National Provider Identifier (NPI) is 1083842199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chetachi Okereke's specialty?
- Chetachi Okereke is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Chetachi Okereke located?
- Chetachi Okereke's practice location on file with NPPES is 1840 San Miguel Dr, Walnut Creek, CA 94596-8602.
- What is Chetachi Okereke's phone number?
- The practice phone number listed in the NPPES registry for Chetachi Okereke is (510) 712-9968.
- Does Chetachi Okereke accept Medicare?
- Chetachi Okereke is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chetachi Okereke's NPI active?
- Yes — Chetachi Okereke's NPI (1083842199) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.