NPPES file of Aug 9, 2026

Armen Garo Chalian, M.D.

Anesthesiology Physician · Orange, CA

Armen Garo Chalian, M.D. is an anesthesiology physician with a practice address in Orange, California, and NPI 1588685309, issued on Jul 21, 2006. Check the license (California G71003, 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
1588685309
Name
Armen Garo Chalian
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G71003 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 W Stewart Dr, Orange, CA 92868
Phone
(714) 633-9111
Enumerated
Jul 21, 2006
Record last updated
Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(714) 774-8695
Medicaid ID
00G710030 CA
Medicare enrollment
Enrolled (PECOS I20040209001330); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1989
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 1100 W Stewart Dr

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

  1. Matthew Abrishamian, MDEmergency Medicine Physician1720516743
  2. Christie Aiello, FNP-BCFamily Nurse Practitioner1972976744
  3. Azita Alipour, PHARM.D.Psychiatric Pharmacist1982835401
  4. Allison Alix, WHNPWomen's Health Nurse Practitioner1396269403
  5. Roger Arakaki, M.D.Anesthesiology Physician1003836990
  6. Shadi Aramesh, MDPsychiatry Physician1326487091

Verify Armen Garo 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 G71003
    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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97% fewer Medicare Part D claims than the average anesthesiology physician in 2024

12 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.

  1. Armen Chalian12
  2. Specialty average402

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.

Bills Medicare through one group practice

  1. Allied Anesthesia Medical Group IncOrange, CA

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

Armen Garo Chalian among 7,571 anesthesiology physician records in California

Armen Garo Chalian, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1989 · median 2006 among the 4,868 with a school on file
  • Record last updated2015 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

267 anesthesiology physician records list a practice address in Orange

They are 267 of the 13,245 NPPES records with a practice address in Orange, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Brandon Abeyta, MDOrange, CA 928681841291804
  2. Angela Azar, MDOrange, CA 928681164494274
  3. Jonathan Cohen, M.D.Orange, CA 928681184691867
  4. Ralph Da Graca, MDOrange, CA 928681861430456
  5. Scott Engwall, MDOrange, CA 928681851378392
  6. Sheree Hsu, M.D.Orange, CA 928681265499032
  7. Brian Levine, MDOrange, CA 928681629032891
  8. Ingrid Manz, CRNAOrange, CA 928681578501417

Common questions

What is Armen Garo Chalian, M.D.'s NPI number?

Armen Garo Chalian, M.D.'s National Provider Identifier (NPI) is 1588685309, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Armen Garo Chalian, M.D. located?

The NPPES record lists a practice address at 1100 W Stewart Dr, Orange, CA, 92868. Phone: (714) 633-9111. Providers update this record themselves, so call before visiting.

How can I verify Armen Garo Chalian, M.D.'s license?

NPPES lists California license number G71003, 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 Armen Garo Chalian, M.D. prescribe under Medicare Part D?

In 2024, Armen Garo Chalian, M.D. had 12 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.