Chaya Devi Ray, M.D.
Family Medicine Physician · Merrimac, MA
Chaya Devi Ray, M.D. is a family medicine physician with a practice address in Merrimac, Massachusetts, and NPI 1679853139, issued on Aug 27, 2011. Check the license (Massachusetts 257983, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Chaya Devi Ray
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 257983 MA
199969 PA
Self-reported in NPPES; status is on the state search - Practice location
- 5 E Main St, Merrimac, MA 01860
- Phone
- (978) 346-9733
- Enumerated
- Aug 27, 2011
- Record last updated
- Oct 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (978) 346-9762
- Medicare enrollment
- Enrolled (PECOS I20141208001155); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 5 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Fowler, D.C.Chiropractor1376541557
- Risa Schulman, MDFamily Medicine Physician1912045170
- Steven St.germain, D.D.S.General Practice Dentistry1225123201
Verify Chaya Devi Ray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 257983Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average family medicine physician in 2024
8,303 Medicare Part D claims for 581 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 234 claims were for opioids.
Most prescribed
- Atorvastatin Calcium721 claims
- Lisinopril451 claims
- Amlodipine Besylate329 claims
- Omeprazole308 claims
- Levothyroxine Sodium283 claims
- Metoprolol Succinate229 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: $39.97
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Medical Care OF Boston Management CorporationHaverhill, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 family medicine physician records list a practice address in Merrimac
They are 3 of the 46 NPPES records with a practice address in Merrimac, and 2,265 family medicine physician records in Massachusetts.
All 3 in Merrimac → All 2,265 in Massachusetts → Every provider in Merrimac →
Other family medicine physician records in Massachusetts
- Salah Abass, M.D.Methuen, MA1417959776
- Majed Abbas, MDLowell, MA1346827870
- Sheila Abdallah, MDWorcester, MA1821356312
- Omar Abduljabar, M.D.Springfield, MA1770978843
- Jonathan Abel, DOSpringfield, MA1700897196
- Mohamed Abib, MDSturbridge, MA1639281090
- Kevin Abraham, M.D.Worcester, MA1689037673
- Janet Abrahamian, M.D.West Boylston, MA1932156627
- John Abramson, M.D.Ipswich, MA1275613903
- John Paul Abroguena, MDPlainville, MA1235361080
Common questions
What is Chaya Devi Ray, M.D.'s NPI number?
Chaya Devi Ray, M.D.'s National Provider Identifier (NPI) is 1679853139, issued on Aug 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Chaya Devi Ray, M.D. located?
The NPPES record lists a practice address at 5 E Main St, Merrimac, MA, 01860. Phone: (978) 346-9733. Providers update this record themselves, so call before visiting.
How can I verify Chaya Devi Ray, M.D.'s license?
NPPES lists Massachusetts license number 257983, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chaya Devi Ray, M.D. prescribe under Medicare Part D?
In 2024, Chaya Devi Ray, M.D. had 8,303 Medicare Part D claims for 581 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.