MUTHUSAMY MUTHIAH MD
NPI 1679541148
Internal Medicine - Cardiovascular Disease in Pomona, CA

Q: What is Muthusamy Muthiah's NPI number?

The NPI number for Muthusamy Muthiah is 1679541148. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Q: What is Muthusamy Muthiah's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Muthusamy Muthiah was last updated on May 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 March 10, 2006PECOS EnrolledAccepts Medicare Assignment

1866 N ORANGE GROVE AVE, SUITE 202, POMONA, CA 91767(909) 623-8796(909) 623-3076 Get Directions Write a Review

NPPES record last updated: May 3, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 3, 2021, Sep 13, 2018 (2 updates tracked since 2018).

On this page

About Muthusamy Muthiah Md NPPES

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

MUTHUSAMY MUTHIAH MD (NPI 1679541148) is an individual cardiovascular disease provider in Pomona, California, licensed in California (A51517) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1679541148

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameMUTHUSAMY MUTHIAHCredential: MD

Location Address1866 N ORANGE GROVE AVE, SUITE 202Pomona, CA 91767-3031

Mailing Address840 Towne Center Dr, Chaparral Medical GroupPomona, CA 91767-5900 · (909) 398-1550 · Fax (909) 398-1488

Phone(909) 623-8796

Fax(909) 623-3076

Sole ProprietorNo

Medical School CMSOtherGraduated 1992

Enumeration DateMarch 10, 2006

Last NPPES UpdateMay 3, 20212 updates tracked since enumeration

NPPES CertifiedMay 3, 2021

✔ NPI 1679541148 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CA · A51517

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License A51517 (CA)

1866 N ORANGE GROVE AVE, Pomona, CA 91767

Open in Google Maps ↗

Other Identifiers 1

Medicaid00A515170CA

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

Muthusamy Muthiah Md 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 ID143316950

PECOS Enrollment IDI20071009000912

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 Muthusamy Muthiah reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chaparral Medical Group, Inc.

Same address

General Practice

1866 N ORANGE GROVE AVE, 202 201 102 & 104
Pomona, CA 91767

Reassigned Medicare billing, California enrollment
Also billed through NPI 1750634325 (California)
114 clinicians in this Medicare group

NPI 1437111028 (909) 623-8796

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 17

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.

1,223 services471 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

1,014 services256 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.

385 services376 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

365 services292 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

345 services310 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

323 services286 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

208 services58 patients

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

205 services200 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.

80 services80 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

78 services77 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

61 services58 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

54 services52 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

54 services52 patients

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.

47 services43 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring 93270

An Electrocardiogram (ECG) is a test that monitors your heart's electrical activity for up to 30 days. It helps identify irregular heartbeats or rhythms. You'll wear a small device that records your heart activity, especially when symptoms like chest pain or palpitations occur.

16 services16 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

13 services12 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91767 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

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

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

KENNETH SPIERS BROWN MD

Internal Medicine

1866 N ORANGE GROVE AVE, STE 102
POMONA, CA 91767

Los Angeles County (909) 620-4373

JAYAPAL ARAGONDA REDDY

Internal Medicine (Cardiovascular Disease)

1866 N ORANGE GROVE AVE, 202
POMONA, CA 91767

Los Angeles County (909) 623-8796

DR. GAURAV R PARIKH MD

Internal Medicine (Cardiovascular Disease)

1866 N ORANGE GROVE AVE, SUITE 202
POMONA, CA 91767

Los Angeles County (909) 623-8796

ROBERT CHESTER JONES MD

Internal Medicine (Sleep Medicine)

1866 N ORANGE GROVE AVE, SUITE 102
POMONA, CA 91767

Los Angeles County (909) 865-0676

INTERNAL MEDICINE MEDICAL GROUP

Internal Medicine

1866 N ORANGE GROVE AVE, SUITE 102
POMONA, CA 91767

Los Angeles County (909) 865-0676

DR. PUNEET GHAYAL M.D.

Internal Medicine (Cardiovascular Disease)

1866 N ORANGE GROVE AVE, SUITE # 202
POMONA, CA 91767

Los Angeles County (909) 623-8796

INTERNAL MEDICINE MEDICAL GROUP

Family Medicine

1866 N ORANGE GROVE AVE, SUITE 202
POMONA, CA 91767

Los Angeles County (909) 623-8796

CHAPARRAL MEDICAL GROUP, INC.

General Practice

1866 N ORANGE GROVE AVE, 202 201 102 & 104
POMONA, CA 91767

Los Angeles County (909) 623-8796

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 Muthusamy Muthiah's NPI number?

The NPI number for Muthusamy Muthiah is 1679541148. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Muthusamy Muthiah located?

Muthusamy Muthiah practices at 1866 N Orange Grove Ave Suite 202, Pomona, CA 91767. The listed phone number is (909) 623-8796.

What is Muthusamy Muthiah's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Muthusamy Muthiah enrolled in Medicare?

Yes. Muthusamy Muthiah 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 organization bills Medicare for Muthusamy Muthiah's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Muthusamy Muthiah reassigns Medicare benefits to Chaparral Medical Group, Inc. (Pomona, 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 Muthusamy Muthiah'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 Muthusamy Muthiah was last updated on May 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.