Doctor profile · Federal record

Dr. Therese Chan Tack, D.O

Internal Medicine Physician (CMS: Internal Medicine) · San Francisco, CA

  • NPI 1750569950
  • Accepts Medicare
  • MIPS 70.8 / 100 · 2023
  • 19 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3937 25Th St
San Francisco, CA 941143812
(415) 294-1462

Credentials & registration

NPPES · NUCC
NPI registered
February 2008 — 18 yrs on file
Profile last updated
February 26, 2013
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A10551

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1750569950. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
334
Distinct HCPCS
7
Medicare allowed
$38,998
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 166 99 $162
99214 Established patient office or other outpatient visit, 30-39 minutes 62 56 $110
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 28 20 $35
99421 Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 24 18 $14
99443 Telephone medical discussion with physician, 21-30 minutes 24 12 $110
99422 Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes 19 15 $29
99213 Established patient office or other outpatient visit, 20-29 minutes 11 11 $74

In context: peer comparison

Among 236 peers in this city , average services per provider: 93. This provider delivers 3.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,147
Patients
468
Total drug cost
$25,259
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 242 93 $4,964
Amlodipine Besylate Generic 129 53 $2,028
Metformin Hcl Generic 104 48 $1,438
Losartan Potassium Generic 81 30 $1,507
Metoprolol Succinate Generic 78 30 $2,189
Omeprazole Generic 61 32 $1,710
Tamsulosin Hcl Generic 60 24 $2,988
Hydrochlorothiazide Generic 57 22 $426
Levothyroxine Sodium Generic 56 20 $1,587
Lisinopril Generic 56 24 $586

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Therese Chan Tack's medical specialty?
Dr. Therese Chan Tack practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Therese Chan Tack practice?
Dr. Therese Chan Tack practices at 3937 25Th St, San Francisco, CA 941143812. Office phone: 4152941462.
What is Dr. Therese Chan Tack's NPI?
Dr. Therese Chan Tack's National Provider Identifier (NPI) is 1750569950, issued by NPPES.
Does Dr. Therese Chan Tack accept Medicare assignment?
Yes. Dr. Therese Chan Tack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Therese Chan Tack commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.