Lee Tat Chan, M.D.
NPI 1992728414 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lee Tat Chan, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1992728414).
Provider details
- NPI number
- 1992728414
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A60670 (CA)
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
19 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
671 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 211 | $114 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 147 | $169 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 95 | $9 |
| Administration of Influenza Virus VaccineG0008 | 90 | $39 |
| Stool Analysis for Blood to Screen for Colon Tumors82270 | 37 | $4 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 25 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 100 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 742 | 203 |
| Amlodipine Besylate | 670 | 193 |
| Simvastatin | 485 | 128 |
| Metformin Hcl | 291 | 82 |
| Losartan Potassium | 248 | 72 |
| Metoprolol Succinate | 247 | 67 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,105 across 144 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
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lee Tat Chan's NPI number?
- Lee Tat Chan's National Provider Identifier (NPI) is 1992728414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lee Tat Chan's specialty?
- Lee Tat Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lee Tat Chan located?
- Lee Tat Chan's practice location on file with NPPES is 416 16th Ave, San Francisco, CA 94118-2812.
- What is Lee Tat Chan's phone number?
- The practice phone number listed in the NPPES registry for Lee Tat Chan is (415) 221-0177.
- Does Lee Tat Chan accept Medicare?
- Lee Tat Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lee Tat Chan's NPI active?
- Yes — Lee Tat Chan's NPI (1992728414) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.