Gilberto Sustache, M.D.
Family Medicine Physician · Marlborough, MA
Gilberto Sustache, M.D. is a family medicine physician with a practice address in Marlborough, Massachusetts, and NPI 1205898509, issued on Apr 4, 2006. Check the license (Massachusetts 295121, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Gilberto Sustache
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 295121 MA
Self-reported in NPPES; status is on the state search - Practice location
- 65 Boston Post RD W Ste 100, Marlborough, MA 01752
- Phone
- (508) 422-4844
- Enumerated
- Apr 4, 2006
- Record last updated
- Aug 19, 2025
- Fax
- (833) 438-8080
- Medicare enrollment
- Enrolled (PECOS I20230120002073); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2001
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Verify Gilberto Sustache in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 295121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average family medicine physician in 2024
4,821 Medicare Part D claims for 582 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. 162 claims were for opioids.
Most prescribed
- Atorvastatin Calcium315 claims
- Losartan Potassium201 claims
- Amlodipine Besylate189 claims
- Lisinopril168 claims
- Levothyroxine Sodium165 claims
- Omeprazole159 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: $20.89
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. 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.
Gilberto Sustache among 2,265 family medicine physician records in Massachusetts
Gilberto Sustache, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 55% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2001 · median 2006 among the 1,529 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Massachusetts
There are 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Marlborough → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Amrutha Balakrishnan, MDMarlborough, MA 017521043479116
- Wendy Gomez, PAMarlborough, MA 017521922714476
- Rocio Nordfeldt, M.D.Marlborough, MA 017521043530033
- Anupreet Oberoi, M.DMarlborough, MA 017521881850816
- Julie Ozaydin, M.D.Marlborough, MA 017521922083849
- Judy WangMarlborough, MA 017521013478262
- Angela Esquibel, MDHopkinton, MA 017481518341403
- Patty-Ann Krajewski, M.D.Hopkinton, MA 017481366451734
Common questions
What is Gilberto Sustache, M.D.'s NPI number?
Gilberto Sustache, M.D.'s National Provider Identifier (NPI) is 1205898509, issued on Apr 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gilberto Sustache, M.D. located?
The NPPES record lists a practice address at 65 Boston Post RD W Ste 100, Marlborough, MA, 01752. Phone: (508) 422-4844. Providers update this record themselves, so call before visiting.
How can I verify Gilberto Sustache, M.D.'s license?
NPPES lists Massachusetts license number 295121, 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 Gilberto Sustache, M.D. prescribe under Medicare Part D?
In 2024, Gilberto Sustache, M.D. had 4,821 Medicare Part D claims for 582 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.