Alison Callahan, MD
Ophthalmology Physician · Boston, MA
Alison Callahan, MD is an ophthalmology physician with a practice address in Boston, Massachusetts, and NPI 1992016059, issued on Jun 23, 2010. Check the license (Massachusetts 266676, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Alison Callahan
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 266676 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- Jun 23, 2010
- Record last updated
- Jan 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20160928000562); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2010
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alison Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 266676Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average ophthalmology physician in 2024
177 Medicare Part D claims for 123 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Erythromycin78 claims
- Tobramycin-Dexamethasone32 claims
- Neomycin-Polymyxin-Dexameth23 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: $20.71
1 payment: food and beverage; the largest payer was Galderma Laboratories, L.P. The 13,221 providers of this specialty with any payment received $4,535.02 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 3 group practices
- Dermwellesley LLCWellesley, MA
- Newton Wellesley Eye Associates PCWellesley, MA
- Pratt Ophthalmology Associates IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alison Callahan among 791 ophthalmology physician records in Massachusetts
Alison Callahan, MD is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 66% of them.
- NPI issued2010 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2010 · median 2002 among the 518 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
All 791 in Massachusetts → Every provider in Boston → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- John Chen, M.D.Boston, MA 021111366627879
- Catherine Choi, M.D.Boston, MA 021111235428178
- Mitesh Kapadia, M.D.Boston, MA 021111245212364
- Robert Kershner, M.D.Boston, MA 021111922115500
- Narae Ko, MDBoston, MA 021111649532276
- Kamden KopaniBoston, MA 021111902034259
- Michelle Liang, M.D.Boston, MA 021111437483310
- Caroline Marten-Ellis, MDBoston, MA 021111912014309
Common questions
What is Alison Callahan, MD's NPI number?
Alison Callahan, MD's National Provider Identifier (NPI) is 1992016059, issued on Jun 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Alison Callahan, MD located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Alison Callahan, MD's license?
NPPES lists Massachusetts license number 266676, 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 Alison Callahan, MD prescribe under Medicare Part D?
In 2024, Alison Callahan, MD had 177 Medicare Part D claims for 123 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.