Josiah an, M.D.
NPI 1053791517 · Hematology & Oncology Physician · Winston Salem, NC
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josiah an, M.D. is a Hematology & Oncology Physician provider in Winston Salem, NC (NPI 1053791517).
Provider details
- NPI number
- 1053791517
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R10218 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 | 57 | 17 |
| Anastrozole | 54 | 29 |
| Abiraterone Acetate | 51 | 12 |
| Ondansetron Hcl | 48 | 26 |
| Lenalidomide | 37 | 11 |
| Dexamethasone | 36 | 16 |
| Hydroxyurea | 36 | 15 |
| Palbociclibbrand: Ibrance | 18 |
Practice location
Mailing address
Additional practice locations (2)
- 200 Hawkins DrDept of Internal MedicineIowa City, IA 52242-1009Phone: (319) 384-9668Fax: (319) 384-8955
- 201 16th Ave ESeattle, WA 98112-5226Phone: (206) 326-3111Fax: (877) 515-2975
Registry dates
- Enumerated
- 2015-05-31
- Last updated
- 2025-12-17
- Certified
- 2025-12-17
Frequently asked questions
- What is Josiah an's NPI number?
- Josiah an's National Provider Identifier (NPI) is 1053791517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josiah an's specialty?
- Josiah an is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Josiah an located?
- Josiah an's practice location on file with NPPES is 3333 Silas Creek Pkwy, Winston Salem, NC 27103-3013.
- What is Josiah an's phone number?
- The practice phone number listed in the NPPES registry for Josiah an is (336) 277-8800.
- Does Josiah an accept Medicare?
- Josiah an is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josiah an's NPI active?
- Yes — Josiah an's NPI (1053791517) is active in the NPPES registry as of the last update on 2025-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.