Anne Porzig, M.D.
NPI 1144420902 · Endocrinology, Diabetes & Metabolism Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anne Porzig, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Palo Alto, CA (NPI 1144420902).
Provider details
- NPI number
- 1144420902
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A99582 (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
408 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 181 | $148 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 80 | $212 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $107 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 40 | $18 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 24 | $169 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 172 | 47 |
| Alendronate Sodium | 168 | 46 |
| Metformin Hclbrand: Metformin Hcl Er | 61 | 22 |
| Empagliflozinbrand: Jardiance | 55 | 13 |
| Atorvastatin Calcium | 51 | 12 |
| Metformin Hcl | 42 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-20
- Last updated
- 2020-05-28
- Certified
- 2020-05-28
Frequently asked questions
- What is Anne Porzig's NPI number?
- Anne Porzig's National Provider Identifier (NPI) is 1144420902, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anne Porzig's specialty?
- Anne Porzig is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Anne Porzig located?
- Anne Porzig's practice location on file with NPPES is 795 El Camino Real, Palo Alto, CA 94301-2302.
- What is Anne Porzig's phone number?
- The practice phone number listed in the NPPES registry for Anne Porzig is (650) 321-4121.
- Does Anne Porzig accept Medicare?
- Anne Porzig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anne Porzig's NPI active?
- Yes — Anne Porzig's NPI (1144420902) is active in the NPPES registry as of the last update on 2020-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.