Daniel Callahan, D.M.D
Dentist · Worcester, MA
Daniel Callahan, D.M.D is a dentist with a practice address in Worcester, Massachusetts, and NPI 1245495431, issued on Jul 28, 2008. Check the license (Massachusetts 10109, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel Callahan
- Credential
- D.M.D
- Primary taxonomy
- Dentist 122300000X
- License number
- 10109 MA
Self-reported in NPPES; status is on the state search - Practice location
- 281 Lincoln St, Worcester, MA 01605
- Phone
- (508) 334-8015
- Enumerated
- Jul 28, 2008
- Record last updated
- Jul 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,934 in Massachusetts → Look up another NPI →
Also registered at 281 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 10109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average dentist in 2024
68 Medicare Part D claims for 50 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin33 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.
Daniel Callahan among 2,934 dentist records in Massachusetts
Daniel Callahan, D.M.D is one of 2,934 dentist records with a practice address in Massachusetts. 58% 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 23% of them.
- NPI issued2008 · 23% of these records are older, 71% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Massachusetts
There are 2,934 dentist records in Massachusetts.
All 2,934 in Massachusetts → Every provider in Worcester → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Francisco Avery-MirandaWorcester, MA 016051124168091
- Frederick Bayon, DMDWorcester, MA 016051417023219
- Candida Castillo, DMD,Worcester, MA 016051265580302
- Jin-Nyung ChangWorcester, MA 016051003114018
- Matthew ClarkWorcester, MA 016051033259908
- Carl Gimbrone, D.M.D.Worcester, MA 016051912202169
- Lowell Gross, DDSWorcester, MA 016051982614194
- Nidhi HandaWorcester, MA 016051588943229
Common questions
What is Daniel Callahan, D.M.D's NPI number?
Daniel Callahan, D.M.D's National Provider Identifier (NPI) is 1245495431, issued on Jul 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Callahan, D.M.D located?
The NPPES record lists a practice address at 281 Lincoln St, Worcester, MA, 01605. Phone: (508) 334-8015. Providers update this record themselves, so call before visiting.
How can I verify Daniel Callahan, D.M.D's license?
NPPES lists Massachusetts license number 10109, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel Callahan, D.M.D prescribe under Medicare Part D?
In 2024, Daniel Callahan, D.M.D had 68 Medicare Part D claims for 50 beneficiaries; the average among dentist prescribers was 86. 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.