Anna Stepczynski, M.D.
NPI 1023320538 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Stepczynski, M.D. is a Internal Medicine Physician provider in Seattle, WA (NPI 1023320538).
Provider details
- NPI number
- 1023320538
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD60936484 (WA)
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
15 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
3,085 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 425 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 366 | $141 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 267 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 233 | $6 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 232 | $16 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 191 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 217 | 76 |
| Amlodipine Besylate | 205 | 64 |
| Levothyroxine Sodium | 156 | 50 |
| Omeprazole | 125 | 49 |
| Gabapentin | 114 | 41 |
| Atorvastatin Calcium | 93 | 36 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-13
- Last updated
- 2026-06-07
- Certified
- 2026-06-07
Frequently asked questions
- What is Anna Stepczynski's NPI number?
- Anna Stepczynski's National Provider Identifier (NPI) is 1023320538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Stepczynski's specialty?
- Anna Stepczynski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Stepczynski located?
- Anna Stepczynski's practice location on file with NPPES is 904 7th Ave, Seattle, WA 98104-1132.
- What is Anna Stepczynski's phone number?
- The practice phone number listed in the NPPES registry for Anna Stepczynski is (206) 860-5574.
- Does Anna Stepczynski accept Medicare?
- Anna Stepczynski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Stepczynski's NPI active?
- Yes — Anna Stepczynski's NPI (1023320538) is active in the NPPES registry as of the last update on 2026-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.