NPPES file of Aug 9, 2026

Raffi A. Chalian, MD

Gynecologic Oncology Physician · Glendale, CA

Raffi A. Chalian, MD is a gynecologic oncology physician with a practice address in Glendale, California, and NPI 1184670408, issued on May 26, 2006. Check the license (California A122745, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184670408
Name
Raffi A. Chalian
Credential
MD
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License number
A122745 CA
Self-reported in NPPES; status is on the state search
Practice location
1505 Wilson Ter Ste 150, Glendale, CA 91206
Phone
(818) 484-8611
Enumerated
May 26, 2006
Record last updated
Jun 15, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(818) 484-8711
Medicaid IDs
101834663 PA
0123129 NJ
Medicare enrollment
Enrolled (PECOS I20160902001096); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1505 Wilson Ter Ste 150

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tigran Khachatryan, MDNeurology Physician1982108981
  2. Natalie Seiser, MDSurgical Oncology Physician1255571949

Verify Raffi A. Chalian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A122745
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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51% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

96 Medicare Part D claims for 70 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. 54 claims were for opioids.

  1. Raffi Chalian96
  2. Specialty average195

Most prescribed

  1. Tramadol Hcl51 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $2,885.80

8 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Raffi Chalian$2,885.80
  2. Specialty average$6,387.20

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Los Angeles Hematology-Oncology Medical GroupLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Raffi A. Chalian among 176 gynecologic oncology physician records in California

Raffi A. Chalian, MD is one of 176 gynecologic oncology physician records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2000 · median 2004 among the 131 with a school on file
  • Record last updated2018 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in California

There are 176 gynecologic oncology physician records in California.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Paul Lin, M.D.Pasadena, CA 911061083619100
  2. Lynda Roman, M.D.Pasadena, CA 911051386649713
  3. Federico Alva, M.D.Northridge, CA 913251649200379
  4. Christine Holschneider, MDSylmar, CA 913421871636928
  5. Amy Hakim, MDMission Hills, CA 913451093909228
  6. Wei-Chien Lin, MDMission Hills, CA 913451437260775
  7. Maria Creselda De Leon, MDSanta Clarita, CA 913551073773073
  8. Annie Yessaian, M.D.Tarzana, CA 913561457356578

Common questions

What is Raffi A. Chalian, MD's NPI number?

Raffi A. Chalian, MD's National Provider Identifier (NPI) is 1184670408, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Raffi A. Chalian, MD located?

The NPPES record lists a practice address at 1505 Wilson Ter Ste 150, Glendale, CA, 91206. Phone: (818) 484-8611. Providers update this record themselves, so call before visiting.

How can I verify Raffi A. Chalian, MD's license?

NPPES lists California license number A122745, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Raffi A. Chalian, MD prescribe under Medicare Part D?

In 2024, Raffi A. Chalian, MD had 96 Medicare Part D claims for 70 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.