Active NPI 1487742003 Individual Practitioner Female Practitioner

Dr. Nally Lin Tsang , MD

Internal Medicine • Fremont, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Nally Tsang, MD is a certified Internal Medicine practicing in Fremont, CA. With approximately 26 years of clinical experience since graduating from University Of California, Davis School Of Medicine in 2000, Dr. Tsang delivers high-quality medical care to the local community at 3200 KEARNEY STREET.

Dr. Tsang is affiliated with Sutter Bay Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, automated urinalysis test, injection beneath the skin or into muscle for therapy, diagnosis, or prevention. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3200 Kearney Street

Fremont, CA 945382299

Telephone 5104901222

Associated Practice Facility / Clinic

🏢 Sutter Bay Medical Foundation Facility NPI 1982845186

Medicare Profile & Education

Medical School

University Of California, Davis School Of Medicine

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Fremont, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs +0.8 yrs vs City Avg

City Avg: 25.2 Yrs

State Avg: 26.6 Yrs

Regional Practice Density

126 Specialists

Practicing in Fremont, CA (18502 Statewide)

Telehealth Adoption Rate

41.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Tsang (26 Years) 26 Yrs

Fremont Specialty Average (25.2 Years) 25.2 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	142	136	$379.00	$150.23
99213 Established patient office or other outpatient visit, typically 15 minutes	52	50	$257.00	$109.50
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	35	35	$509.00	$208.85
81003 Automated urinalysis test	30	29	$18.00	$2.20
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	15	13	$112.00	$17.79
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	13	13	$62.00	$16.20
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	11	11	$77.00	$50.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$380.00	$133.45
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$267.00	$88.49
87636 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b	11	11	$206.00	$139.78

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	147	142	$364.00	$153.41
99213 Established patient office or other outpatient visit, typically 15 minutes	73	68	$247.00	$109.03
J0696 Injection, ceftriaxone sodium, per 250 mg	46	12	$9.00	$0.52
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	30	$489.00	$213.75
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	28	27	$73.00	$50.28
81003 Automated urinalysis test	25	25	$17.00	$2.20
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	20	18	$107.00	$17.60
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$365.00	$134.08
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	13	13	$59.00	$16.20
87636 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b	12	12	$198.00	$139.78

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	123	121	$353.00	$151.76
99213 Established patient office or other outpatient visit, typically 15 minutes	69	68	$240.00	$108.03
J0696 Injection, ceftriaxone sodium, per 250 mg	56	14	$9.00	$0.50
81003 Automated urinalysis test	44	43	$16.00	$2.22
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	26	$475.00	$212.18
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	24	23	$105.00	$17.54
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	23	23	$69.00	$50.46
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$354.00	$132.32

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	100	97	$343.00	$153.77
99213 Established patient office or other outpatient visit, typically 15 minutes	69	68	$233.00	$108.08
81003 Automated urinalysis test	34	34	$15.00	$2.25
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	31	$461.00	$209.47
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	16	16	$69.00	$51.31
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	13	12	$105.00	$17.36

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	108	103	$329.00	$128.29
99213 Established patient office or other outpatient visit, typically 15 minutes	67	66	$225.00	$90.21
J0696 Injection, ceftriaxone sodium, per 250 mg	44	11	$9.00	$0.58
81003 Automated urinalysis test	15	15	$14.00	$2.23
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	14	14	$105.00	$17.38

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	165	156	$329.00	$128.58
99213 Established patient office or other outpatient visit, typically 15 minutes	70	70	$225.00	$88.39
J0696 Injection, ceftriaxone sodium, per 250 mg	56	13	$2.00	$0.58
81003 Automated urinalysis test	41	40	$14.00	$2.44
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	20	18	$105.00	$20.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$330.00	$128.17

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	217	209	$322.00	$124.94
99213 Established patient office or other outpatient visit, typically 15 minutes	71	68	$220.00	$85.25
81003 Automated urinalysis test	48	44	$14.00	$2.71
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	16	14	$102.00	$25.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$323.00	$126.65

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	229	210	$315.00	$123.25
99213 Established patient office or other outpatient visit, typically 15 minutes	68	68	$215.00	$82.54
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	34	21	$99.00	$31.23
81003 Automated urinalysis test	30	30	$13.00	$3.02
94640 Inhalation treatment for airway obstruction or sputum production	17	16	$83.00	$23.48
J7620 Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme	13	11	$1.00	$0.15
82962 Blood glucose (sugar) test performed by hand-held instrument	13	13	$13.00	$3.15

Medical Specialties & State Licenses

CMS Verified: 2020-05-27

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA A76823

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Pediatrics

NUCC Taxonomy Code: 208000000X

State License CA A76823

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Hospital & Practice Group Affiliations

Sutter Bay Medical Foundation

3200 Kearney St, Fremont, CA 945382299

Phone: 5104901222

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Lakshmi Srinivasan , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1003002049

Doctor of Medicine (M.D.)

Thomas Kim

Orthopaedic Surgery - Hand Surgery

NPI 1003105032

Dr. Stephanie Chiang , MD

Pediatrics

NPI 1003986084

Doctor of Medicine (M.D.)

Dr. Steven Bartis , DPM

Podiatrist

NPI 1003989559

Doctor of Podiatric Medicine

Dr. Nancy Wang , MD

Otolaryngology - Plastic Surgery within the Head & Neck

NPI 1013337492

Doctor of Medicine (M.D.)

Zahra Pirani

Emergency Medicine - Pediatric Emergency Medicine

NPI 1013350529

Career & Practice History Timeline

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

7 Historical Events

📍

Updated Business Mailing Address May 27, 2020

Registered at 325 DISTEL CIR, LOS ALTOS, CA 940221408 (Tel: 5104901222)

✅

NPI Profile Active April 25, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location April 25, 2012

Registered at 3200 KEARNEY STREET, FREMONT, CA 945382299 (Tel: 5104901222)

📍

Updated Business Mailing Address April 25, 2012

Registered at 2350 W. EL CAMINO REAL, 2ND FLOOR, MOUNTAIN VIEW, CA 940406203

👤

Provider Name / Credentials Updated April 25, 2012

Recorded as NALLY TSANG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 25, 2012

Internal Medicine (License #A76823 in CA)

🟢

Initial NPI Registration & Enumeration October 10, 2006

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: 1487742003

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: October 10, 2006

Last Update: May 27, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

325 Distel Cir

Los Altos, CA 940221408

Phone: 5104901222

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.