NPPES file of Aug 9, 2026

Jack Armen Mahdasian, MD

Psychiatry Physician · Grand Rapids, MI

Jack Armen Mahdasian, MD is a psychiatry physician with a practice address in Grand Rapids, Michigan, and NPI 1841246634, issued on May 25, 2006. Check the license (Michigan 4301065448, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1841246634
Name
Jack Armen Mahdasian
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
4301065448 MI
Self-reported in NPPES; status is on the state search
Practice location
300 68TH St SE, Grand Rapids, MI 49548
Phone
(616) 455-5000
Enumerated
May 25, 2006
Record last updated
Nov 17, 2022
Medicaid ID
3165069 MI
Medicare enrollment
Enrolled (PECOS I20080515000530); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1991
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 300 68TH St SE

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

  1. Salman Abdul MajeedPsychiatry Physician1144896218
  2. Kimberly AbedClinical Social Worker1568864775
  3. Eric Achtyes, MDPsychiatry Physician1780665976
  4. Matthew AdamsBehavior Analyst1770290561
  5. Andrae Agnew, LMSWClinical Social Worker1306481023
  6. Kyle AhonenChild & Adolescent Psychiatry Physician1326579426

Verify Jack Armen Mahdasian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301065448
    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 Michigan 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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90% fewer Medicare Part D claims than the average psychiatry physician in 2024

99 Medicare Part D claims for 37 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Jack Mahdasian99
  2. Specialty average1,000

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.

One hospital affiliation

  1. Pine Rest Christian Mental Health ServicesGrand Rapids, MI · Psychiatric

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Jack Armen Mahdasian among 1,729 psychiatry physician records in Michigan

Jack Armen Mahdasian, MD is one of 1,729 psychiatry physician records with a practice address in Michigan. 69% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 63% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1991 · median 2005 among the 828 with a school on file
  • Record last updated2022 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

206 psychiatry physician records list a practice address in Grand Rapids

They are 206 of the 18,005 NPPES records with a practice address in Grand Rapids, and 1,729 psychiatry physician records in Michigan.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Eric Achtyes, MDGrand Rapids, MI 495481780665976
  2. Jaime Ayala, M.D.Grand Rapids, MI 495481235180720
  3. William Beute, M.D.Grand Rapids, MI 495481093761827
  4. Eric Erickson, DOGrand Rapids, MI 495481558342220
  5. Jeffrey Jackson, MDGrand Rapids, MI 495481598711186
  6. Robert Lafleur, D.O.Grand Rapids, MI 495481043260177
  7. Carlos Marcano, MDGrand Rapids, MI 495481639125040
  8. Valerie Mathis-Allen, MDGrand Rapids, MI 495481790732741

Common questions

What is Jack Armen Mahdasian, MD's NPI number?

Jack Armen Mahdasian, MD's National Provider Identifier (NPI) is 1841246634, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jack Armen Mahdasian, MD located?

The NPPES record lists a practice address at 300 68TH St SE, Grand Rapids, MI, 49548. Phone: (616) 455-5000. Providers update this record themselves, so call before visiting.

How can I verify Jack Armen Mahdasian, MD's license?

NPPES lists Michigan license number 4301065448, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jack Armen Mahdasian, MD prescribe under Medicare Part D?

In 2024, Jack Armen Mahdasian, MD had 99 Medicare Part D claims for 37 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.