Active NPI 1144551979 Individual Practitioner Female Practitioner

Dr. Garmen A Woo , MD

General Practice • Tracy, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Garmen Woo, MD is a certified General Practice practicing in Tracy, CA. With approximately 19 years of clinical experience since completing medical education in 2007, Dr. Woo delivers high-quality medical care to the local community at 4600 S TRACY BLVD STE 108.

Dr. Woo maintains professional affiliations with Alameda Inpatient Medical Inc, Alameda Health System and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with moderate level of medical decision making, if using time, at least, emergency department visit for life threatening or functioning severity, critical care, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4600 S Tracy Blvd Ste 108

Tracy, CA 953778105

Telephone 5105714596

Associated Practice Facility / Clinic

🏢 San Joaquin Hematology/oncology, A Pc Facility NPI 1699744383

Medicare Profile & Education

Medical School

Other

Graduation Year

2007

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Tracy, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

19 Yrs -1.5 yrs vs City Avg

City Avg: 20.5 Yrs

State Avg: 31.1 Yrs

Regional Practice Density

4 Specialists

Practicing in Tracy, CA (2300 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Woo (19 Years) 19 Yrs

Tracy Specialty Average (20.5 Years) 20.5 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
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	257	188	$404.79	$192.74
99285 Emergency department visit for life threatening or functioning severity	76	70	$563.89	$186.52
99291 Critical care, first 30-74 minutes	34	27	$477.59	$229.98
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	24	13	$188.00	$130.42
99292 Critical care, each additional 30 minutes	22	21	$210.00	$115.98
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	21	18	$654.09	$164.24
99213 Established patient office or other outpatient visit, typically 15 minutes	21	16	$326.40	$74.20
99239 Hospital discharge day management, more than 30 minutes	11	11	$215.00	$128.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	339	271	$408.80	$193.50
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	299	109	$188.00	$132.37
99291 Critical care, first 30-74 minutes	115	59	$464.00	$232.38
99285 Emergency department visit for life threatening or functioning severity	99	94	$570.11	$190.31
99239 Hospital discharge day management, more than 30 minutes	81	71	$215.00	$129.16
99213 Established patient office or other outpatient visit, typically 15 minutes	65	29	$324.98	$74.94
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$267.00	$144.31
99284 Emergency department visit with moderate level of medical decision making	21	21	$394.01	$131.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	271	217	$425.44	$219.26
99285 Emergency department visit for life threatening or functioning severity	112	104	$573.11	$190.34
99291 Critical care, first 30-74 minutes	47	45	$464.00	$236.96
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	26	24	$274.09	$148.87
99220 Hospital observation care, typically 70 minutes	15	12	$418.62	$197.19
99284 Emergency department visit with moderate level of medical decision making	13	13	$395.06	$131.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	273	180	$493.67	$223.07
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	88	43	$188.00	$115.42
99291 Critical care, first 30-74 minutes	39	31	$464.00	$241.51
99239 Hospital discharge day management, more than 30 minutes	24	24	$215.00	$120.78
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	22	16	$121.00	$78.88
99285 Emergency department visit for life threatening or functioning severity	19	18	$575.91	$191.97
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	18	18	$170.17	$104.36
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$469.68	$112.42
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	12	$267.00	$151.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	105	97	$661.03	$228.39
99442 Telephone medical discussion with physician, 11-20 minutes	23	18	$82.53	$57.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	17	$484.00	$88.35
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	14	13	$1851.00	$94.42
36620 Insertion of artery tube for blood sampling or infusion through skin	11	11	$160.00	$49.31

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	45	29	$377.92	$88.00
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	35	33	$649.96	$224.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	70	67	$613.00	$219.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	66	35	$322.73	$85.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	95	94	$686.18	$226.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	29	16	$296.62	$83.41
99220 Hospital observation care, typically 70 minutes	12	12	$558.00	$209.10

Medical Specialties & State Licenses

CMS Verified: 2026-07-09

General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License CA A110615

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License CA A110615

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.

Hospital & Practice Group Affiliations

Alameda Inpatient Medical Inc

2070 Clinton Ave, Alameda, CA 945014399

Phone: 5108144397

Alameda Health System

6955 Foothill Blvd, Oakland, CA 946052426

Phone: 5105675704

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Neelesh Bangalore , MD, PhD

Specialist

NPI 1154326262

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location July 09, 2026

Registered at 4600 S TRACY BLVD STE 108, TRACY, CA 953778105 (Tel: 5105714596)

📍

Updated Business Mailing Address July 09, 2026

Registered at 4600 S TRACY BLVD STE 108, TRACY, CA 953778105 (Tel: 5105174596)

✅

NPI Profile Active January 19, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location January 19, 2010

Registered at 696 ATHOL AVE APT 103, OAKLAND, CA 946103757 (Tel: 5103040517)

📍

Updated Business Mailing Address January 19, 2010

Registered at 696 ATHOL AVE APT 103, OAKLAND, CA 946103757 (Tel: 5103040517)

👤

Provider Name / Credentials Updated January 19, 2010

Recorded as GARMEN WOO, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 19, 2010

Internal Medicine (License #A110615 in CA)

🟢

Initial NPI Registration & Enumeration January 19, 2010

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: 1144551979

Entity Type:

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

Enumeration Date: January 19, 2010

Last Update: July 09, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

4600 S Tracy Blvd Ste 108

Tracy, CA 953778105

Phone: 5105174596

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.