Doctor profile · Federal record

Dr. Mai-Chi Tieu, RN, NP

Nurse Practitioner · Registered Nurse · Student in an Organized Health Care Education/Training Program · San Francisco, CA

  • NPI 1679974539
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
6221 Geary Blvd Fl 2
San Francisco, CA 941211834
(415) 386-6600
Additional location
1500 Franklin St
San Francisco, CA 941094523
(415) 474-7310
Mailing address
2714 Fulton St
San Francisco, CA 941183923

Credentials & registration

NPPES · NUCC
NPI registered
September 2014 — 12 yrs on file
Profile last updated
December 17, 2019
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
California #NP95002927 · California #809794

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679974539. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
476
Distinct HCPCS
5
Medicare allowed
$69,112
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 157 19 $127
99215 Established patient office or other outpatient visit, 40-54 minutes 119 22 $173
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 90 20 $178
99443 Telephone medical discussion with physician, 21-30 minutes 71 16 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 39 12 $89

In context: peer comparison

Among 57 peers in San Francisco Nurse Practitioner, average services per provider: 68. This provider delivers 7.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
570
Patients
0
Total drug cost
$26,694
Drug Type Claims Patients Total cost
Trazodone Hcl Generic 62 0 $920
Olanzapine Generic 59 0 $2,261
Fluoxetine Hcl Generic 49 0 $437
Aripiprazole Generic 47 0 $9,931
Quetiapine Fumarate Generic 47 0 $862
Bupropion Hcl SR (Bupropion Hcl) Brand 45 0 $388
Escitalopram Oxalate Generic 44 0 $948
Sertraline Hcl Generic 42 0 $688
Buspirone Hcl Generic 38 0 $524
Haloperidol Generic 26 0 $625

Frequently asked questions

Auto-generated from federal data
What is Dr. Mai-Chi Tieu's medical specialty?
Dr. Mai-Chi Tieu practices Nurse Practitioner in San Francisco, CA.
Where does Dr. Mai-Chi Tieu practice?
Dr. Mai-Chi Tieu practices at 6221 Geary Blvd Fl 2, San Francisco, CA 941211834. Office phone: 4153866600.
What is Dr. Mai-Chi Tieu's NPI?
Dr. Mai-Chi Tieu's National Provider Identifier (NPI) is 1679974539, issued by NPPES.
Does Dr. Mai-Chi Tieu accept Medicare assignment?
Dr. Mai-Chi Tieu does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mai-Chi Tieu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Residence visit for established patient with high level of medical decision making (HCPCS 99350). Source: CMS Medicare Physician & Other Practitioners file.