Marta Kochanska, M.D.
NPI 1417156936 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marta Kochanska, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1417156936).
Provider details
- NPI number
- 1417156936
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A95683 (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
18 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
34 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 34 | $193 |
Typical Medicare-allowed amounts for these services range $193–$193 (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 · 40 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 79 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 44 |
| Levothyroxine Sodium | 36 |
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 35 |
| Gabapentin | 34 |
| Metformin Hcl | 34 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 29 |
| Amlodipine Besylate | 28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-13
- Last updated
- 2009-08-26
Frequently asked questions
- What is Marta Kochanska's NPI number?
- Marta Kochanska's National Provider Identifier (NPI) is 1417156936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marta Kochanska's specialty?
- Marta Kochanska is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marta Kochanska located?
- Marta Kochanska's practice location on file with NPPES is Box 0378 , 400 Parnassus Ave, 4th Floor A-429, San Francisco, CA 94143-0378.
- What is Marta Kochanska's phone number?
- The practice phone number listed in the NPPES registry for Marta Kochanska is (415) 353-2119.
- Does Marta Kochanska accept Medicare?
- Marta Kochanska is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marta Kochanska's NPI active?
- Yes — Marta Kochanska's NPI (1417156936) is active in the NPPES registry as of the last update on 2009-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.