Ashwin N. Ananthakrishnan, M.D., M.P.H
Gastroenterology Physician · Boston, MA
Ashwin N. Ananthakrishnan, M.D., M.P.H is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1033292545, issued on Oct 21, 2006. Check the license (Massachusetts 242671, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ashwin N. Ananthakrishnan
- Credential
- M.D., M.P.H
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 242671 MA
48732 - 20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 165 Cambridge St 9TH FL, Boston, MA 02114
- Phone
- (617) 726-0267
- Enumerated
- Oct 21, 2006
- Record last updated
- Dec 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (617) 726-3080
- Medicaid ID
- 110084764/A MA
- Medicare enrollment
- Enrolled (PECOS I20100720000732); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Verify Ashwin N. Ananthakrishnan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 242671Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average gastroenterology physician in 2024
1,305 Medicare Part D claims for 220 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims. 12 claims were for opioids.
Most prescribed
- Stelara125 claims
- Omeprazole103 claims
- Mesalamine81 claims
- Humira(Cf) Pen70 claims
- Methotrexate56 claims
- Azathioprine49 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: $115.92
1 payment: food and beverage; the largest payer was Conmed Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 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 2 group practices
- Massachusetts General Physicians Organization IncDanvers, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashwin N. Ananthakrishnan among 686 gastroenterology physician records in Massachusetts
Ashwin N. Ananthakrishnan, M.D., M.P.H is one of 686 gastroenterology 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, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2003 · median 2004 among the 491 with a school on file
- Record last updated2014 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Diane Abraczinskas, MDBoston, MA 021141811988488
- Karin Andersson, MDBoston, MA 021141972585511
- Bernard Aserkoff, MDBoston, MA 021141851381123
- Cheryl Bunker, MDBoston, MA 021141952384752
- Andrew Chan, M.D.Boston, MA 021141982600144
- Raymond Chung, MDBoston, MA 021141154311769
- Daniel Chung, MDBoston, MA 021141710978994
- Peter Kelsey, MDBoston, MA 021141255313383
Common questions
What is Ashwin N. Ananthakrishnan, M.D., M.P.H's NPI number?
Ashwin N. Ananthakrishnan, M.D., M.P.H's National Provider Identifier (NPI) is 1033292545, issued on Oct 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ashwin N. Ananthakrishnan, M.D., M.P.H located?
The NPPES record lists a practice address at 165 Cambridge St 9TH FL, Boston, MA, 02114. Phone: (617) 726-0267. Providers update this record themselves, so call before visiting.
How can I verify Ashwin N. Ananthakrishnan, M.D., M.P.H's license?
NPPES lists Massachusetts license number 242671, 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 Ashwin N. Ananthakrishnan, M.D., M.P.H prescribe under Medicare Part D?
In 2024, Ashwin N. Ananthakrishnan, M.D., M.P.H had 1,305 Medicare Part D claims for 220 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.