Mark Alan Washington, M.D.
Hospitalist Physician · Gary, IN
Mark Alan Washington, M.D. is a hospitalist physician with a practice address in Gary, Indiana, and NPI 1396079406, issued on Sep 22, 2009. Check the license (Indiana 01071818A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Mark Alan Washington
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 01071818A IN
Self-reported in NPPES; status is on the state search - Practice location
- 600 Grant St, Gary, IN 46402
- Phone
- (121) 988-6400
- Enumerated
- Sep 22, 2009
- Record last updated
- Feb 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130909000318); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 453 in Indiana → Look up another NPI →
Also registered at 600 Grant St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Myza Rae Alexander, RNEmergency Medical Services (Emergency Medicine) Physician1811707326
- Mohammad Almachnouk, MDAnesthesiology Physician1679517742
- Clive Alonzo, M.D.Internal Medicine Physician1134190721
- Heather Andryuk, PHARMDPharmacist1093923351
- Kathryn AvinaPhysician Assistant1578950424
- Guangyu BaiEmergency Medicine Physician1386286474
Verify Mark Alan Washington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01071818ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average hospitalist physician in 2024
332 Medicare Part D claims for 149 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 12 claims were for opioids.
Most prescribed
- Buprenorphine-Naloxone37 claims
- Levofloxacin34 claims
- Prednisone23 claims
- Amlodipine Besylate19 claims
- Potassium Chloride16 claims
- Furosemide15 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.
Bills Medicare through one group practice
- Hospital Care Group PCFort Wayne, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Alan Washington among 453 hospitalist physician records in Indiana
Mark Alan Washington, M.D. is one of 453 hospitalist physician records with a practice address in Indiana. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 40% of them.
- NPI issued2009 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2009 · median 2008 among the 379 with a school on file
- Record last updated2020 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Indiana
There are 453 hospitalist physician records in Indiana.
All 453 in Indiana → Every provider in Gary → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Safa Abdalla, MDValparaiso, IN 463831174264329
- Shakumar Patel, MDValparaiso, IN 463831174151807
- Taylor Adrian, NPMichigan City, IN 463601811652431
- Umair AhmedMichigan City, IN 463601134579402
- Vamshi Bende, M.DMichigan City, IN 463601497905202
- Anil Chawla, MDMichigan City, IN 463601922066760
- Alex Htun, MDMichigan City, IN 463601326546201
- Lindsay KlineMichigan City, IN 463601588404974
Common questions
What is Mark Alan Washington, M.D.'s NPI number?
Mark Alan Washington, M.D.'s National Provider Identifier (NPI) is 1396079406, issued on Sep 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mark Alan Washington, M.D. located?
The NPPES record lists a practice address at 600 Grant St, Gary, IN, 46402. Phone: (121) 988-6400. Providers update this record themselves, so call before visiting.
How can I verify Mark Alan Washington, M.D.'s license?
NPPES lists Indiana license number 01071818A, 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 Mark Alan Washington, M.D. prescribe under Medicare Part D?
In 2024, Mark Alan Washington, M.D. had 332 Medicare Part D claims for 149 beneficiaries; the average among hospitalist physician prescribers was 521. 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.