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Active NPI 1356692958 Individual Practitioner Female Practitioner

Thu Anh Lewin , FNP

Nurse Practitioner • San Francisco, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Thu Lewin, FNP is a certified Nurse Practitioner practicing in San Francisco, CA. With approximately 5 years of clinical experience since completing medical education in 2021, Thu Lewin delivers high-quality medical care to the local community at 1580 VALENCIA ST.

Thu Lewin is affiliated with Sutter Bay Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, 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's, admn sarscov2 vacc 1 dose. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1580 Valencia St

San Francisco, CA 941104423

Telephone 4156005400
Fax 4156005400
Associated Practice Facility / Clinic
🏢 St Lukes Health Care Center Facility NPI 1558390716

Medicare Profile & Education

Medical School

Other

Graduation Year

2021

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in San Francisco, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
5 Yrs -6.0 yrs vs City Avg
City Avg: 11.0 Yrs
State Avg: 11.7 Yrs
Regional Practice Density
429 Specialists

Practicing in San Francisco, CA (8378 Statewide)

Telehealth Adoption Rate
21.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
53.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lewin (5 Years) 5 Yrs
San Francisco Specialty Average (11.0 Years) 11.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
87 73 $379.00 $130.43
99213 Established patient office or other outpatient visit, typically 15 minutes
68 56 $257.00 $92.13
G2211 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's
45 41 $69.00 $15.75
90480 Admn sarscov2 vacc 1 dose
19 19 $65.00 $51.59
91322 Sarscov2 vac 50 mcg/0.5ml im
19 19 $245.53 $152.74
G0008 Administration of influenza virus vaccine
16 16 $65.00 $38.68
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
15 15 $320.00 $132.13
90653 Vaccine for influenza for injection into muscle
13 13 $105.00 $81.82

Medical Specialties & State Licenses

CMS Verified: 2025-11-20
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License CA 95018271

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

Sutter Bay Medical Foundation

1580 Valencia St, San Francisco, CA 941104423

Sutter Bay Medical Foundation

3838 California St, San Francisco, CA 941181506

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

24 Associated Practitioners
Katarina Velardez , NP

Nurse Practitioner - Adult Health

NPI 1023845872

Nurse Practitioner

Julietta Ghukasyan , PA-C

Physician Assistant

NPI 1063125284

Physician Assistant (Certified)

Dr. Mara Cao , MD

Internal Medicine

NPI 1154966091

Doctor of Medicine (M.D.)

Christopher Jenny , PA-C

Physician Assistant

NPI 1306004361

Physician Assistant (Certified)

Dr. Derek Nguyen , MD

Internal Medicine

NPI 1306422399

Doctor of Medicine (M.D.)

Viet-Thi Ta

Family Medicine

NPI 1346772530

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location November 20, 2025

Registered at 1580 VALENCIA ST, SAN FRANCISCO, CA 941104423 (Tel: 4156005400)

📍
Updated Business Mailing Address November 20, 2025

Registered at PO BOX 276950, SACRAMENTO, CA 958276950

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 20, 2025

Nurse Practitioner (License #95018271 in CA)

NPI Profile Active September 09, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location September 09, 2016

Registered at 73D WINTHROP AVE, LAWRENCE, MA 018433716 (Tel: 9786863017)

📍
Updated Business Mailing Address September 09, 2016

Registered at 73D WINTHROP AVE, LAWRENCE, MA 018433716 (Tel: 9786863017)

👤
Provider Name / Credentials Updated September 09, 2016

Recorded as THU LEWIN, FNP

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 09, 2016

Nurse Practitioner (License #RN272736 in MA)

🟢
Initial NPI Registration & Enumeration September 24, 2012

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1356692958
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 24, 2012
Last Update: November 20, 2025
Sole Proprietor: No

Mailing Address

Po Box 276950

Sacramento, CA 958276950

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.