Mary D. Chaglassian, MD
Internal Medicine Physician · Elmhurst, NY
Mary D. Chaglassian, MD is an internal medicine physician with a practice address in Elmhurst, New York, and NPI 1417902040, issued on May 23, 2006. Check the license (New York 180668, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mary D. Chaglassian
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 180668 NY
Self-reported in NPPES; status is on the state search - Practice location
- 8615 Queens Blvd, Elmhurst, NY 11373
- Phone
- (718) 899-6600
- Enumerated
- May 23, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (718) 899-6600
- Entity
- Type 1 · individual
Also registered at 8615 Queens Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary D. Chaglassian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 180668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
170 Medicare Part D claims for 35 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 13 claims were for opioids.
Most prescribed
- Acetaminophen-Codeine13 claims
- Rosuvastatin Calcium12 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: $621.98
25 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
114 internal medicine physician records list a practice address in Elmhurst
They are 114 of the 2,781 NPPES records with a practice address in Elmhurst, and 12,067 internal medicine physician records in New York.
All 114 in Elmhurst → All 12,067 in New York → Every provider in Elmhurst →
Other internal medicine physician records in New York
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- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Mary D. Chaglassian, MD's NPI number?
Mary D. Chaglassian, MD's National Provider Identifier (NPI) is 1417902040, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary D. Chaglassian, MD located?
The NPPES record lists a practice address at 8615 Queens Blvd, Elmhurst, NY, 11373. Phone: (718) 899-6600. Providers update this record themselves, so call before visiting.
How can I verify Mary D. Chaglassian, MD's license?
NPPES lists New York license number 180668, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary D. Chaglassian, MD prescribe under Medicare Part D?
In 2024, Mary D. Chaglassian, MD had 170 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.