Daniel Choyce Callahan, MD
Pain Medicine (Psychiatry & Neurology) Physician · Sullivan, IN
Daniel Choyce Callahan, MD is a pain medicine (psychiatry & neurology) physician with a practice address in Sullivan, Indiana, and NPI 1255580593, issued on Sep 11, 2008. Check the license (Indiana 01080614A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Daniel Choyce Callahan
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Psychiatry & Neurology) Physician 2084P2900X
- License numbers
- 01080614A IN
036.147496 IL
4301099722 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2120 N Section St, Sullivan, IN 47882
- Phone
- (812) 268-2556
- Enumerated
- Sep 11, 2008
- Record last updated
- Jan 30, 2026
- Medicaid ID
- 300017765 IN
- Medicare enrollment
- Enrolled (PECOS I20180725001713); accepts Medicare assignment
- Medical or professional school
- University Of Miami, Lm Miller School Of Medicine, 2005
- Entity
- Type 1 · individual
2 nearest pain medicine (psychiatry & neurology) physician records → All 3 in Indiana → Look up another NPI →
Also registered at 2120 N Section St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shan Antony, MDFamily Medicine Physician1093444382
- Shahid Bashir, M.D.Pulmonary Disease Physician1982751244
- Robert Ealy, APRNFamily Nurse Practitioner1720664048
- Kevin Flinn, NPNurse Practitioner1558019505
- Paul Nosa-OviasuFamily Medicine Physician1740662063
Verify Daniel Choyce Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01080614ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average pain medicine (psychiatry & neurology) physician in 2024
2,154 Medicare Part D claims for 562 beneficiaries, against an average of 1,374 among the 130 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 1,017 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen405 claims
- Gabapentin338 claims
- Oxycodone-Acetaminophen181 claims
- Morphine Sulfate164 claims
- Topiramate133 claims
- Pregabalin118 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: $47.38
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 96 providers of this specialty with any payment received $1,718.51 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.
One hospital affiliation
- Sullivan County Community HospitalSullivan, IN · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
1 pain medicine (psychiatry & neurology) physician record lists a practice address in Sullivan
They are 1 of the 85 NPPES records with a practice address in Sullivan, and 3 pain medicine (psychiatry & neurology) physician records in Indiana.
All 3 in Indiana → Every provider in Sullivan → Pain Medicine (Psychiatry & Neurology) Physician nationwide →
The 2 pain medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Steven Scheiner, MDLawrenceburg, IN 470251164482931
- Roger Lemmen, M.D.Bluffton, IN 467141497825004
Common questions
What is Daniel Choyce Callahan, MD's NPI number?
Daniel Choyce Callahan, MD's National Provider Identifier (NPI) is 1255580593, issued on Sep 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Choyce Callahan, MD located?
The NPPES record lists a practice address at 2120 N Section St, Sullivan, IN, 47882. Phone: (812) 268-2556. Providers update this record themselves, so call before visiting.
How can I verify Daniel Choyce Callahan, MD's license?
NPPES lists Indiana license number 01080614A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel Choyce Callahan, MD prescribe under Medicare Part D?
In 2024, Daniel Choyce Callahan, MD had 2,154 Medicare Part D claims for 562 beneficiaries; the average among pain medicine (psychiatry & neurology) physician prescribers was 1,374. 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.