Amy Tang, M.D.
NPI 1588009666 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Tang, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1588009666).
Provider details
- NPI number
- 1588009666
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 276575 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
412 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 87 | $6 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 66 | $10 |
| Hemoglobin A1c Level83036 | 56 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 46 | $13 |
| Urine Microalbumin (protein) Level82043 | 45 | $6 |
| Creatinine Level to Test for Kidney Function Or Muscle Injury82570 | 45 | $5 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 195 | 57 |
| Atorvastatin Calcium | 184 | 55 |
| Empagliflozinbrand: Jardiance | 110 | 33 |
| Losartan Potassium | 91 | 27 |
| Alendronate Sodium | 90 | 26 |
| Famotidine | 71 | 28 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 1 record (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
Registry dates
- Enumerated
- 2013-05-02
- Last updated
- 2020-01-30
- Certified
- 2020-01-30
Frequently asked questions
- What is Amy Tang's NPI number?
- Amy Tang's National Provider Identifier (NPI) is 1588009666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Tang's specialty?
- Amy Tang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Amy Tang located?
- Amy Tang's practice location on file with NPPES is 1520 Stockton Street, San Francisco, CA 94133-3354.
- What is Amy Tang's phone number?
- The practice phone number listed in the NPPES registry for Amy Tang is (415) 391-9686.
- Does Amy Tang accept Medicare?
- Amy Tang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Tang's NPI active?
- Yes — Amy Tang's NPI (1588009666) is active in the NPPES registry as of the last update on 2020-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.