DR. ROMELA PETROSYAN M.D.
NPI 1689109878
Internal Medicine - Nephrology in Los Angeles, CA

Q: What is Romela Petrosyan's NPI number?

The NPI number for Romela Petrosyan is 1689109878. It was assigned to this individual provider in the NPPES registry on April 25, 2017.

Q: What is Romela Petrosyan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Romela Petrosyan was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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 April 25, 2017PECOS EnrolledAccepts Medicare Assignment

1333 SAN PABLO ST # 628, LOS ANGELES, CA 90089(323) 442-1040 Get Directions Write a Review

NPPES record last updated: March 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 4, 2026, Nov 7, 2025, Oct 26, 2022 and 3 more (6 updates tracked since 2017).

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About Dr. Romela Petrosyan M.d. NPPES

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

DR. ROMELA PETROSYAN M.D. (NPI 1689109878) is an individual nephrology provider in Los Angeles, California, licensed in California (A183119) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Univ Of Central Florida, College Of Medicine (2017).

NPPES Registry Identity

NPI1689109878

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameDR. ROMELA PETROSYANCredential: M.D.

Location Address1333 SAN PABLO ST # 628Los Angeles, CA 90089-1031

Mailing AddressPo Box 50938Los Angeles, CA 90074-0938 · (323) 442-5100

Phone(323) 442-1040

Sole ProprietorYes

Medical School CMSUniv Of Central Florida, College Of MedicineGraduated 2017

Enumeration DateApril 25, 2017

Last NPPES UpdateMarch 4, 20266 updates tracked since enumeration

NPPES CertifiedMarch 4, 2026

✔ NPI 1689109878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in CA · A183119✔ Licensed in MA · 282974

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License 51101 (SC)

1333 SAN PABLO ST # 628, Los Angeles, CA 90089

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

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. Romela Petrosyan 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 ID9133491319

PECOS Enrollment IDI20221013001706, I20241028000696

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 Romela Petrosyan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Usc Care Medical Group, Inc

0.2 mi

General Practice

1520 SAN PABLO ST
Los Angeles, CA 90033

Reassigned Medicare billing, California enrollment
2,445 clinicians in this Medicare group

NPI 1902846306 (323) 442-5955

Usc Care Medical Non-Contracted LLC

0.2 mi

Nephrology

1520 SAN PABLO ST
Los Angeles, CA 90033

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

NPI 1659509206 (323) 442-5100

Confermed Of California PC

35 mi

Internal Medicine

101 ACADEMY STE 100
Irvine, CA 92617

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

NPI 1316584709 (860) 323-0172

Mass General Brigham Medical Group Suburban Massachusetts Inc

2,585 mi

Family Medicine

2014 WASHINGTON STREET
Newton, MA 02462

Reassigned Medicare billing, Massachusetts enrollment
992 clinicians in this Medicare group

NPI 1538191218 (617) 243-6262

Brigham & Womens Physicians Organization Inc

2,592 mi

Internal Medicine

75 FRANCIS ST
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
4,574 clinicians in this Medicare group

NPI 1033535497 (617) 732-5500

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 12

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.

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.

198 services86 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

116 services54 patients

Dialysis procedure including 1 evaluation 90945

Dialysis is a treatment that filters and purifies the blood when your kidneys can't do their job. The procedure involves circulating your blood through a machine that removes waste products. An evaluation is done beforehand to assess your health and determine the best approach for your treatment.

115 services40 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.

80 services48 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.

59 services58 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

39 services30 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.

18 services18 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

18 services17 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

18 services13 patients

Drainage of fluid from abdominal cavity using imaging guidance 49083

This procedure involves removing excess fluid from your abdominal cavity, which can relieve discomfort. A specialist uses imaging technology to guide a thin needle into the right spot. The fluid is then drained out safely.

15 services15 patients

Needle biopsy of kidney 50200

A needle biopsy of the kidney is a medical procedure where a small sample of kidney tissue is removed using a special needle. This is done to examine the tissue under a microscope for any abnormalities. It helps in diagnosing potential kidney conditions.

12 services12 patients

Ultrasound scan of chest 76604

An ultrasound scan of the chest is a non-invasive imaging procedure that uses sound waves to create pictures of the structures within your chest, such as your heart and lungs. It's a safe, painless method that helps doctors diagnose and monitor various conditions.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90089 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.

Other Providers at the Same Location NPPES

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

MARIAM NOUR ELDINE

Internal Medicine (Nephrology)

1333 SAN PABLO ST # 628
LOS ANGELES, CA 90089

Los Angeles County (213) 284-2912

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 Romela Petrosyan's NPI number?

The NPI number for Romela Petrosyan is 1689109878. It was assigned to this individual provider in the NPPES registry on April 25, 2017.

Where is Romela Petrosyan located?

Romela Petrosyan practices at 1333 San Pablo St # 628, Los Angeles, CA 90089. The listed phone number is (323) 442-1040.

What is Romela Petrosyan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Romela Petrosyan enrolled in Medicare?

Yes. Romela Petrosyan 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 Romela Petrosyan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Romela Petrosyan reassigns Medicare benefits to 5 organizations: Usc Care Medical Group, Inc (Los Angeles, CA), Usc Care Medical Non-Contracted LLC (Los Angeles, CA), Confermed Of California PC (Irvine, CA), Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA) and Brigham & Womens Physicians Organization Inc (Boston, MA). 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 Romela Petrosyan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Romela Petrosyan accept?

Health plans from Taro Health list Romela Petrosyan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Romela Petrosyan affiliated with any hospitals?

According to CMS data, Romela Petrosyan is affiliated with Massachusetts General Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Romela Petrosyan was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.