Ryan Thomas Callahan, DPM
Podiatrist · Boston, MA
Ryan Thomas Callahan, DPM is a podiatrist with a practice address in Boston, Massachusetts, and NPI 1265010284, issued on Mar 31, 2021. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan Thomas Callahan
- Credential
- DPM
- Primary taxonomy
- Podiatrist 213E00000X
- License number
- E6042 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 S Huntington Ave, Boston, MA 02130
- Phone
- (857) 364-4802
- Enumerated
- Mar 31, 2021
- Record last updated
- Feb 12, 2026
- Entity
- Type 1 · individual
8 nearest podiatrist records → All 287 in Massachusetts → Look up another NPI →
Also registered at 150 S Huntington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nancy Allen, R.N.Neuroscience Clinical Nurse Specialist1861542458
- Elizabeth Alpert, PH.D.Clinical Psychologist1801584768
Verify Ryan Thomas Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average podiatrist in 2024
11 Medicare Part D claims, against an average of 314 among the 6,407 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $32.00
1 payment: food and beverage; the largest payer was Paragon 28, Inc. The 4,596 providers of this specialty with any payment received $2,476.60 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.
Ryan Thomas Callahan among 287 podiatrist records in Massachusetts
Ryan Thomas Callahan, DPM is one of 287 podiatrist records with a practice address in Massachusetts. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.
- NPI issued2021 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2026 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 213E00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Podiatrist providers in Massachusetts
There are 287 podiatrist records in Massachusetts.
All 287 in Massachusetts → Every provider in Boston → Podiatrist nationwide →
The 8 podiatrist records with the nearest ZIP codes
- Robert Riccitelli, DPMCharlestown, MA 021291528049566
- Millard Hennessee, D.P.MBoston, MA 021271285666222
- Sonali Lucitt, DPMAllston, MA 021341144960766
- Lynn-Indora Edmond, DPMBoston, MA 021351023696804
- Scott Horwitz, DPMBrighton, MA 021351003802133
- Jeffrey Kittay, D.P.M.Brighton, MA 021351811970684
- Eric Marchetti, DPMBrighton, MA 021351609560044
- Mitchell Silverman, DPMDorchester, MA 021251033204268
Common questions
What is Ryan Thomas Callahan, DPM's NPI number?
Ryan Thomas Callahan, DPM's National Provider Identifier (NPI) is 1265010284, issued on Mar 31, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Thomas Callahan, DPM located?
The NPPES record lists a practice address at 150 S Huntington Ave, Boston, MA, 02130. Phone: (857) 364-4802. Providers update this record themselves, so call before visiting.
How can I verify Ryan Thomas Callahan, DPM's license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan Thomas Callahan, DPM prescribe under Medicare Part D?
In 2024, Ryan Thomas Callahan, DPM had 11 Medicare Part D claims; the average among podiatrist prescribers was 314. 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.