DR. MARC HUALONG MA M.D.
NPI 1740500313
Family Medicine in Rowland Heights, CA

Q: What is Marc Ma's NPI number?

The NPI number for Marc Ma is 1740500313. It was assigned to this individual provider in the NPPES registry on June 7, 2010. The provider is also known as Hualong Ma MD.

Q: What is Marc Ma's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Marc Ma was last updated on July 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 07, 2010PECOS EnrolledAccepts Medicare Assignment

1818 SIERRA LEONE AVE STE E, ROWLAND HEIGHTS, CA 91748(626) 600-8066 Get Directions Write a Review

NPPES record last updated: July 14, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 14, 2022, Jul 25, 2019 (2 updates tracked since 2019).

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About Dr. Marc Hualong Ma M.d. NPPES

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

DR. MARC HUALONG MA M.D. (NPI 1740500313) is an individual family medicine provider in Rowland Heights, California, licensed in California (A122326) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1740500313

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. MARC HUALONG MACredential: M.D.

Location Address1818 SIERRA LEONE AVE STE ERowland Heights, CA 91748-3696

Mailing Address1818 Sierra Leone Ave Ste ERowland Heights, CA 91748-3696 · (626) 536-7534

Phone(626) 600-8066

Sole ProprietorYes

Medical School CMSOtherGraduated 1998

Enumeration DateJune 7, 2010

Last NPPES UpdateJuly 14, 20222 updates tracked since enumeration

NPPES CertifiedJuly 14, 2022

✔ NPI 1740500313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in CA · A122326✔ Licensed in TX · BP10036754

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

1818 SIERRA LEONE AVE STE E, Rowland Heights, CA 91748

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Other Names 1

Former Name (1)Hualong Ma Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marc Hualong Ma 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 ID8123261849

PECOS Enrollment IDI20130828000697

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.

Medicare Billing Reassignments

Medicare enrollment records show Marc Ma reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marc Ma Family Medicine

Same address

Clinic/Center

1818 SIERRA LEONE AVE STE E
Rowland Heights, CA 91748

Reassigned Medicare billing, California enrollment

NPI 1760137780 (626) 600-8066

Herald Christian Health Center

13 mi

Federally Qualified Health Center (FQHC)

923 S SAN GABRIEL BLVD
San Gabriel, CA 91776

Reassigned Medicare billing, California enrollment
18 clinicians in this Medicare group

NPI 1033390273 (626) 286-8700

Signify Health Medical Associates Of California, PC

364 mi

General Practice

505 MONTGOMERY ST, FL 10 & 11
San Francisco, CA 94111

Reassigned Medicare billing, California enrollment
407 clinicians in this Medicare group

NPI 1124685169 (972) 715-3800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 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.

218 services60 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

30 services28 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.

21 services21 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

18 services16 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

13 services13 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91748 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

Referred Medical Equipment & Supplies CMS DME claims 7

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

3 suppliers11 claims19 services$5.23 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier12 claims12 services$38.26 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier20 claims20 services$14.12 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

1 supplier12 claims12 services$26.77 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers36 claims36 services$65.56 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers18 claims18 services$12.33 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

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

MARC MA FAMILY MEDICINE

Clinic/Center

1818 SIERRA LEONE AVE STE E
ROWLAND HEIGHTS, CA 91748

Los Angeles County (626) 600-8066

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 Marc Ma's NPI number?

The NPI number for Marc Ma is 1740500313. It was assigned to this individual provider in the NPPES registry on June 7, 2010. The provider is also known as Hualong Ma MD.

Where is Marc Ma located?

Marc Ma practices at 1818 Sierra Leone Ave Ste E, Rowland Heights, CA 91748. The listed phone number is (626) 600-8066.

What is Marc Ma's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Marc Ma enrolled in Medicare?

Yes. Marc Ma 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.

Which organizations bill Medicare for Marc Ma's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marc Ma reassigns Medicare benefits to 3 organizations: Marc Ma Family Medicine (Rowland Heights, CA), Herald Christian Health Center (San Gabriel, CA) and Signify Health Medical Associates Of California, PC (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Ma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marc Ma was last updated on July 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.