Michael Natter, MD
NPI 1558896035 · Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Natter, MD is a Endocrinology, Diabetes & Metabolism Physician provider in San Francisco, CA (NPI 1558896035).
Provider details
- NPI number
- 1558896035
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 302904 (NY)
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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
740 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 292 | $142 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 239 | $9 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 61 | $187 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 54 | $201 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 47 | $38 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 211 | 54 |
| Levothyroxine Sodium | 175 | 56 |
| Semaglutidebrand: Ozempic | 121 | 35 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 96 | 28 |
| Metformin Hcl | 69 | 31 |
| Atorvastatin Calcium | 63 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,339 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 550 1st AveNew York, NY 10016-6402Phone: (212) 263-5506
Registry dates
- Enumerated
- 2017-04-21
- Last updated
- 2026-02-23
- Certified
- 2026-02-23
Frequently asked questions
- What is Michael Natter's NPI number?
- Michael Natter's National Provider Identifier (NPI) is 1558896035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Natter's specialty?
- Michael Natter is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Natter located?
- Michael Natter's practice location on file with NPPES is 400 Parnassus Ave Rm A556, San Francisco, CA 94143-2202.
- What is Michael Natter's phone number?
- The practice phone number listed in the NPPES registry for Michael Natter is (415) 353-2350.
- Does Michael Natter accept Medicare?
- Michael Natter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Natter's NPI active?
- Yes — Michael Natter's NPI (1558896035) is active in the NPPES registry as of the last update on 2026-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.