MR. ANTHONY C. CHEN M.D.
NPI 1073527099
Internal Medicine in Hacienda Heights, CA

Q: What is Anthony Chen's NPI number?

The NPI number for Anthony Chen is 1073527099. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Q: What is Anthony Chen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Anthony Chen was last updated on April 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 July 27, 2006PECOS EnrolledCLIA 05D1010936 · Waiver

1850 S AZUSA AVE, SUITE 102, HACIENDA HEIGHTS, CA 91745(626) 912-2682(626) 912-2684 Get Directions Write a Review

NPPES record last updated: April 2, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Mr. Anthony C. Chen M.d. NPPES

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

MR. ANTHONY C. CHEN M.D. (NPI 1073527099) is an individual internal medicine provider in Hacienda Heights, California, licensed in California (G74781) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through March 26, 2027, and is a graduate of Warren Alpert Medical School Of Brown University (1990).

NPPES Registry Identity

NPI1073527099

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameMR. ANTHONY C. CHENCredential: M.D.

Location Address1850 S AZUSA AVE, SUITE 102Hacienda Heights, CA 91745-6827

Mailing Address1850 S Azusa Ave, Suite 102Hacienda Heights, CA 91745-6827 · (626) 912-2682 · Fax (626) 912-2684

Phone(626) 912-2682

Fax(626) 912-2684

Sole ProprietorYes

Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 1990

Enumeration DateJuly 27, 2006

Last NPPES UpdateApril 2, 2010

✔ NPI 1073527099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · G74781✔ Licensed in CA · G074781

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.

Also ListedSurgeryTaxonomy 208600000X · License G74781 (CA)

1850 S AZUSA AVE, Hacienda Heights, CA 91745

Open in Google Maps ↗

Other Identifiers 2

Medicare UPING74781

Medicare UPINF60277

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Anthony C. Chen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2769411073

PECOS Enrollment IDI20050808000282

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 Reassignment

Medicare enrollment records show Anthony Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anthony C. Chen, M.D., Inc.

Same address

Internal Medicine

1850 S AZUSA AVE STE 102
Hacienda Heights, CA 91745

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Anthony C Chen MD Inc

NPI 1629527783 (626) 912-2682

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D1010936

Anthony Chen MD · Hacienda Heights, CA

Active · expires Mar 26, 2027

CLIA Number05D1010936

Laboratory TypePhysician Office

Certificate Effective DateMarch 27, 2025

Certificate Expiration DateMarch 26, 2027

Laboratory DirectorAnthony C. Chen MD

Laboratory Phone(626) 912-2682

Laboratory LocationAnthony Chen MD1850 South Azusa Ave #102, Hacienda Heights, CA 91745

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 15

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.

328 services157 patients

Insertion of needle into vein (3 years or older) 36410

This procedure involves placing a small needle into a vein, typically in the arm. It's done to collect blood for testing or to deliver medication. You may feel a quick pinch, but it's usually over in seconds. It's a common, safe procedure.

211 services125 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

166 services94 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.

151 services92 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.

122 services122 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.

88 services82 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

83 services82 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

70 services69 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

65 services65 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

62 services62 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

39 services39 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

35 services35 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

28 services18 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.

15 services15 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91745 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

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 2

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

8 suppliers24 claims47 services$6.32 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

1 supplier11 claims11 services$215.80 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 20

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

PUENTE HILLS PHARMACY

Pharmacy (Community/Retail Pharmacy)

1850 S AZUSA AVE, SUITE 101
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-3311

MRS. JANE S GU MD

Pediatrics

1850 S AZUSA AVE, SUITE 205
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-2880

GARLAN G. LO M.D.

Ophthalmology

1850 S AZUSA AVE, STE 107
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-6888

DR. STEPHEN CURTIS WONG M.D.

Allergy & Immunology (Allergy)

1850 S AZUSA AVE, SUITE 206
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 810-5450

ERNESTO G ONG M.D.

Pediatrics

1850 S AZUSA AVE
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-6012

RAYMOND WONG PHARM.D.

Durable Medical Equipment & Medical Supplies

1850 S AZUSA AVE, SUITE 101
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-3311

PIH HEALTH PHYSICIANS

Family Medicine

1850 S AZUSA AVE
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-3040

YU HONG CHEN NP

Nurse Practitioner (Primary Care)

1850 S AZUSA AVE, SUITE 308
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 854-7866

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 Anthony Chen's NPI number?

The NPI number for Anthony Chen is 1073527099. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Anthony Chen located?

Anthony Chen practices at 1850 S Azusa Ave Suite 102, Hacienda Heights, CA 91745. The listed phone number is (626) 912-2682.

What is Anthony Chen's specialty?

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

Is Anthony Chen enrolled in Medicare?

Yes. Anthony Chen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Anthony Chen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Chen reassigns Medicare benefits to Anthony C. Chen, M.D., Inc. (Hacienda Heights, CA). The 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 Anthony Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Anthony Chen hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1010936) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Anthony Chen was last updated on April 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.