Active NPI 1578889416 Individual Practitioner Male Practitioner

Dr. Mark Y. Liang , MD

Internal Medicine • Fremont, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Mark Liang, MD is a certified Internal Medicine practicing in Fremont, CA. With approximately 16 years of clinical experience since graduating from Temple University School Of Medicine in 2010, Dr. Liang delivers high-quality medical care to the local community at 46690 MOHAVE DR.

Dr. Liang is affiliated with Washington Township Medical Foundation and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, telephone medical discussion with physician. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

46690 Mohave Dr

Fremont, CA 945397001

Telephone 5102481065

Associated Practice Facility / Clinic

🏢 Washington Newark Medical Group Facility NPI 1225146970

Medicare Profile & Education

Medical School

Temple University School Of Medicine

Graduation Year

2010

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Fremont, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

16 Yrs -9.2 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

✓ Offers Virtual Consultations

Medicare Pricing Discount

53.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Liang (16 Years) 16 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
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	540	272	$479.88	$213.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	429	231	$344.45	$152.62
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	71	71	$351.11	$155.88
99443 Telephone medical discussion with physician, 21-30 minutes	63	54	$343.78	$153.10
G0008 Administration of influenza virus vaccine	34	34	$53.00	$38.68
90662 Influenza vaccine split virus, preservative free	33	33	$120.00	$81.82

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	467	262	$315.47	$149.99
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	320	217	$403.90	$209.68
99443 Telephone medical discussion with physician, 21-30 minutes	274	186	$326.92	$149.42
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	76	76	$334.24	$152.93
G0008 Administration of influenza virus vaccine	62	62	$53.00	$36.29
90662 Influenza vaccine split virus, preservative free	60	60	$120.00	$71.93
99442 Telephone medical discussion with physician, 11-20 minutes	33	29	$227.32	$107.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$399.28	$195.47
99213 Established patient office or other outpatient visit, typically 15 minutes	13	12	$240.96	$107.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99443 Telephone medical discussion with physician, 21-30 minutes	249	203	$303.53	$149.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	239	181	$343.51	$143.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	185	185	$399.67	$193.08
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	88	84	$333.42	$208.08
G0008 Administration of influenza virus vaccine	45	45	$53.00	$36.73
99442 Telephone medical discussion with physician, 11-20 minutes	45	38	$207.74	$104.33
90662 Influenza vaccine split virus, preservative free	42	42	$120.00	$68.54
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	26	26	$415.80	$257.78
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	17	17	$319.84	$155.83
99213 Established patient office or other outpatient visit, typically 15 minutes	17	17	$355.15	$94.84

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	164	110	$338.83	$113.20
99213 Established patient office or other outpatient visit, typically 15 minutes	57	48	$278.26	$74.82
99442 Telephone medical discussion with physician, 11-20 minutes	48	35	$121.00	$77.84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	31	31	$673.00	$159.58
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$222.50	$94.88
36415 Insertion of needle into vein for collection of blood sample	24	16	$5.00	$3.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$345.64	$150.01
99443 Telephone medical discussion with physician, 21-30 minutes	15	13	$178.00	$114.24
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	12	12	$903.00	$201.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	86	45	$5.00	$2.98
80061 Blood test, lipids (cholesterol and triglycerides)	42	29	$63.00	$13.32
80053 Blood test, comprehensive group of blood chemicals	42	31	$47.00	$10.51
82570 Creatinine level to test for kidney function or muscle injury	31	19	$11.55	$5.16
82043 Urine microalbumin (protein) level	30	19	$11.55	$5.75
83036 Hemoglobin A1C level	24	15	$21.00	$9.66
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	20	18	$25.00	$6.42
84443 Blood test, thyroid stimulating hormone (TSH)	19	17	$31.20	$16.75
84439 Thyroxine (thyroid chemical), free	19	17	$23.63	$8.98
80048 Blood test, basic group of blood chemicals (calcium, total)	17	12	$31.50	$8.38
G0328 Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous	14	14	$43.42	$18.02
80076 Liver function blood test panel	12	11	$42.00	$8.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	126	68	$5.00	$2.94
80061 Blood test, lipids (cholesterol and triglycerides)	50	39	$63.00	$14.58
80053 Blood test, comprehensive group of blood chemicals	48	36	$47.00	$11.51
84443 Blood test, thyroid stimulating hormone (TSH)	33	25	$31.20	$18.30
84439 Thyroxine (thyroid chemical), free	31	24	$23.63	$9.82
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	30	29	$25.00	$7.04
G0328 Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous	26	26	$42.59	$17.69
82043 Urine microalbumin (protein) level	25	17	$11.55	$6.29
80048 Blood test, basic group of blood chemicals (calcium, total)	25	23	$31.50	$9.21
82570 Creatinine level to test for kidney function or muscle injury	24	16	$11.55	$5.63
83036 Hemoglobin A1C level	24	15	$21.00	$10.57
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	18	17	$35.00	$8.46
81001 Manual urinalysis test with examination using microscope, automated	17	14	$26.25	$3.45
87502 Detection test by nucleic acid for multiple types influenza virus	13	13	$110.00	$93.88
93000 Routine ekg using at least 12 leads including interpretation and report	11	11	$34.00	$20.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	172	92	$710.16	$115.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	49	49	$1333.86	$224.03
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	29	15	$286.21	$81.92
99239 Hospital discharge day management, more than 30 minutes	23	23	$696.63	$122.74
36415 Insertion of needle into vein for collection of blood sample	20	17	$5.00	$2.94
99220 Hospital observation care, typically 70 minutes	13	13	$1318.91	$204.94
80053 Blood test, comprehensive group of blood chemicals	11	11	$47.00	$12.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	201	96	$282.92	$80.93
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	85	54	$439.82	$116.59
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	25	25	$834.32	$226.27
99239 Hospital discharge day management, more than 30 minutes	20	20	$382.27	$122.93

Medical Specialties & State Licenses

CMS Verified: 2022-04-13

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA A119336

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

Washington Township Medical Foundation

46690 Mohave Dr, Fremont, CA 945397001

Phone: 5106512371

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Magin Alexander , MD

Internal Medicine

NPI 1144782673

Doctor of Medicine (M.D.)

Wen Yang , NP

Nurse Practitioner - Family

NPI 1194485557

Nurse Practitioner

Dr. Thomas Collins-Pallett , MD

Family Medicine

NPI 1669834305

Doctor of Medicine (M.D.)

Dr. Steven Curran , MD

Family Medicine

NPI 1871688861

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

17 Historical Events

📍

Updated Practice Location February 09, 2022

Registered at 46690 MOHAVE DR, FREMONT, CA 945397001 (Tel: 5102481065)

📍

Updated Business Mailing Address February 09, 2022

Registered at 46690 MOHAVE DR, FREMONT, CA 945397001 (Tel: 5102481065)

📍

Updated Practice Location February 12, 2021

Registered at 5800 HOLLIS ST, EMERYVILLE, CA 946082016 (Tel: 8889241036)

📍

Updated Business Mailing Address February 12, 2021

Registered at 5800 HOLLIS ST, EMERYVILLE, CA 946082016

📍

Updated Practice Location July 19, 2018

Registered at 1870 LUNDY AVE, SAN JOSE, CA 951311826 (Tel: 4085739686)

📍

Updated Business Mailing Address July 19, 2018

Registered at 1870 LUNDY AVE, SAN JOSE, CA 951311826 (Tel: 4085739686)

✅

NPI Profile Active September 07, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location September 07, 2017

Registered at 2000 MOWRY AVE, FREMONT, CA 945381716 (Tel: 5107971111)

📍

Updated Business Mailing Address September 07, 2017

Registered at 2000 MOWRY AVE, FREMONT, CA 945381716 (Tel: 5107971111)

👤

Provider Name / Credentials Updated September 07, 2017

Recorded as MARK LIANG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 07, 2017

Internal Medicine (License #A119336 in CA)

✅

NPI Profile Active March 15, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location March 15, 2015

Registered at 2000 MOWRY AVE, FREMONT, CA 945381716 (Tel: 5107971111)

📍

Updated Business Mailing Address March 15, 2015

Registered at 2000 MOWRY AVE, FREMONT, CA 945381716 (Tel: 5107971111)

👤

Provider Name / Credentials Updated March 15, 2015

Recorded as MARK LIANG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 15, 2015

Internal Medicine (License #A119336 in CA)

🟢

Initial NPI Registration & Enumeration April 16, 2010

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1578889416

Entity Type:

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

Enumeration Date: April 16, 2010

Last Update: April 13, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

46690 Mohave Dr

Fremont, CA 945397001

Phone: 5102481065

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.