DR. MARK Y. LIANG M.D.
NPI 1578889416
Internal Medicine in Fremont, CA

Active since April 16, 2010PECOS EnrolledAccepts Medicare Assignment
46690 MOHAVE DR, FREMONT, CA 94539(510) 248-1065 Get Directions Write a Review

NPPES record last updated: April 13, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 13, 2022, Feb 9, 2022, Feb 5, 2022 and 3 more (6 updates tracked since 2018).

About Dr. Mark Y. Liang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK Y. LIANG M.D. (NPI 1578889416) is an individual internal medicine provider in Fremont, California, licensed in California (A119336) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS and is a graduate of Temple University School Of Medicine (2010).

NPPES Registry Identity

NPI1578889416
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK Y. LIANGCredential: M.D.
Location Address46690 MOHAVE DRFremont, CA 94539-7001
Mailing Address46690 Mohave DrFremont, CA 94539-7001 · (510) 248-1065
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 2010
Enumeration DateApril 16, 2010
Last NPPES UpdateApril 13, 20226 updates tracked since enumeration
NPPES CertifiedApril 13, 2022
NPI 1578889416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A119336
Definition

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.

46690 MOHAVE DR, Fremont, CA 94539

Other Names 1

Former Name (1)Yi-fan Liang

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark Y. Liang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6305063801
PECOS Enrollment IDI20140806002424
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
540 services272 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
429 services231 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
71 services71 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
63 services54 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
34 services34 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94539 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%87 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers15 claims42 services$5.77 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
46690 MOHAVE DR
FREMONT, CA 94539
Internal Medicine
46690 MOHAVE DR
FREMONT, CA 94539
Nurse Practitioner (Family)
46690 MOHAVE DR
FREMONT, CA 94539
Family Medicine
46690 MOHAVE DR
FREMONT, CA 94539
Family Medicine
46690 MOHAVE DR
FREMONT, CA 94539
Family Medicine
46690 MOHAVE DR
FREMONT, CA 94539
Family Medicine
46690 MOHAVE DR
FREMONT, CA 94539

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Liang's NPI number?

The NPI number for Mark Liang is 1578889416. It was assigned to this individual provider in the NPPES registry on April 16, 2010. The provider is also known as Yi-Fan Liang.

Where is Mark Liang located?

Mark Liang practices at 46690 Mohave Dr, Fremont, CA 94539. The listed phone number is (510) 248-1065.

What is Mark Liang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Liang enrolled in Medicare?

Yes. Mark Liang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mark Liang was last updated on April 13, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.