Ana Mercedes Roca Mattei, M.D.
Internal Medicine Physician · Holyoke, MA
Ana Mercedes Roca Mattei, M.D. is an internal medicine physician with a practice address in Holyoke, Massachusetts, and NPI 1144485145, issued on Jul 20, 2008. Check the license (Massachusetts 252723, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ana Mercedes Roca Mattei
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 252723 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Hospital Dr., Suite 101 Western Mass Physician Associ, Holyoke, MA 01040
- Phone
- (413) 536-8924
- Enumerated
- Jul 20, 2008
- Record last updated
- Feb 14, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (413) 532-9141
- Medicaid ID
- 110094126A MA
- Medicare enrollment
- Enrolled (PECOS I20121119000543); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Verify Ana Mercedes Roca Mattei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 252723Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.4 times the Medicare Part D claims of the average internal medicine physician in 2024
20,293 Medicare Part D claims for 1,000 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 951 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,322 claims
- Lisinopril880 claims
- Omeprazole764 claims
- Amlodipine Besylate656 claims
- Metformin Hcl590 claims
- Gabapentin578 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: $19.56
1 payment: food and beverage; the largest payer was Tactile Systems Technology 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.
Bills Medicare through one group practice
- Western Mass Physician Associates IncHolyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ana Mercedes Roca Mattei among 6,825 internal medicine physician records in Massachusetts
Ana Mercedes Roca Mattei, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2003 · median 2004 among the 4,103 with a school on file
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 internal medicine physician records list a practice address in Holyoke
They are 31 of the 1,961 NPPES records with a practice address in Holyoke, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Holyoke → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Purnima Adlakha, M.D.Holyoke, MA 010401487601175
- Tazeen Aleem, MDHolyoke, MA 010401760466494
- Vamseedhar Alla, M.D.Holyoke, MA 010401083646517
- Kenneth Aquilino, MDHolyoke, MA 010401770583668
- Vanessa Begolli, M.D.Holyoke, MA 010401770553562
- Ana Maria Castrillon, MDHolyoke, MA 010401932174570
- Alejandro Esparza-Perez, M.D.Holyoke, MA 010401124098595
- Thomas Judd, MDHolyoke, MA 010401780788802
Common questions
What is Ana Mercedes Roca Mattei, M.D.'s NPI number?
Ana Mercedes Roca Mattei, M.D.'s National Provider Identifier (NPI) is 1144485145, issued on Jul 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ana Mercedes Roca Mattei, M.D. located?
The NPPES record lists a practice address at 2 Hospital Dr., Suite 101 Western Mass Physician Associ, Holyoke, MA, 01040. Phone: (413) 536-8924. Providers update this record themselves, so call before visiting.
How can I verify Ana Mercedes Roca Mattei, M.D.'s license?
NPPES lists Massachusetts license number 252723, 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 Ana Mercedes Roca Mattei, M.D. prescribe under Medicare Part D?
In 2024, Ana Mercedes Roca Mattei, M.D. had 20,293 Medicare Part D claims for 1,000 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.