Therese Chan Tack, D.O
NPI 1750569950 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Therese Chan Tack, D.O is a Internal Medicine Physician provider in San Francisco, CA (NPI 1750569950).
Provider details
- NPI number
- 1750569950
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- No
- License
- 20A10551 (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
343 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 109 | $19 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 79 | $158 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $109 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 36 | $162 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 215 | 79 |
| Amlodipine Besylate | 126 | 46 |
| Metformin Hcl | 93 | 31 |
| Levothyroxine Sodium | 85 | 23 |
| Rosuvastatin Calcium | 69 | 22 |
| Losartan Potassium | 58 | 24 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-02-11
- Last updated
- 2013-02-26
Frequently asked questions
- What is Therese Chan Tack's NPI number?
- Therese Chan Tack's National Provider Identifier (NPI) is 1750569950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Therese Chan Tack's specialty?
- Therese Chan Tack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Therese Chan Tack located?
- Therese Chan Tack's practice location on file with NPPES is 3937 25th St, San Francisco, CA 94114-3812.
- What is Therese Chan Tack's phone number?
- The practice phone number listed in the NPPES registry for Therese Chan Tack is (415) 294-1462.
- Does Therese Chan Tack accept Medicare?
- Therese Chan Tack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Therese Chan Tack's NPI active?
- Yes — Therese Chan Tack's NPI (1750569950) is active in the NPPES registry as of the last update on 2013-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.