Allison J. Williams, MD
Critical Care Medicine (Internal Medicine) Physician · Indianapolis, IN
Allison J. Williams, MD is a critical care medicine (internal medicine) physician with a practice address in Indianapolis, Indiana, and NPI 1588127237, issued on Apr 10, 2019. Check the license (Indiana 01087598A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Allison J. Williams
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 01087598A IN
Self-reported in NPPES; status is on the state search - Practice location
- 5515 W 38TH St, Indianapolis, IN 46254
- Phone
- (317) 880-3838
- Enumerated
- Apr 10, 2019
- Record last updated
- Jul 14, 2026
- Fax
- (317) 880-0081
- Medicaid ID
- 300026533 IN
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 163 in Indiana → Look up another NPI →
Also registered at 5515 W 38TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Adams, RNRegistered Nurse1750150603
- Yanira Aguilera, RDHDental Hygienist1881401966
- Helen Bishara, DMDDentist1992978860
- James Blackwell, MDPediatrics Physician1215023932
- Ashley Blankenbaker, DDSDentist1720820459
- Nicole Bolin, MOT, OTROccupational Therapist1356181853
Verify Allison J. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01087598ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
380 Medicare Part D claims for 78 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa33 claims
- Trelegy Ellipta25 claims
- Ventolin Hfa21 claims
- Budesonide-Formoterol Fumarate18 claims
- Prednisone18 claims
- Spiriva Respimat17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Allison J. Williams among 163 critical care medicine (internal medicine) physician records in Indiana
Allison J. Williams, MD is one of 163 critical care medicine (internal medicine) physician records with a practice address in Indiana. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileNo · 87% of these records are
- Record last updated2026 · 21% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Indiana
There are 163 critical care medicine (internal medicine) physician records in Indiana.
All 163 in Indiana → Every provider in Indianapolis → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Bruce Ackerman, M.D.Indianapolis, IN 462561154327633
- Suresh Devnani, M.D.Indianapolis, IN 462561730183237
- Tanya Devnani, M.D.Indianapolis, IN 462561265846554
- George Elias, M.D.Indianapolis, IN 462561225032725
- Walid Hadid, M.D.Indianapolis, IN 462561871549816
- Bassam Helou, M.D.Indianapolis, IN 462561629072111
- Brendan Keleher, M.D.Indianapolis, IN 462561720408123
- Lauren Pavlik, MDIndianapolis, IN 462561982267183
Common questions
What is Allison J. Williams, MD's NPI number?
Allison J. Williams, MD's National Provider Identifier (NPI) is 1588127237, issued on Apr 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Allison J. Williams, MD located?
The NPPES record lists a practice address at 5515 W 38TH St, Indianapolis, IN, 46254. Phone: (317) 880-3838. Providers update this record themselves, so call before visiting.
How can I verify Allison J. Williams, MD's license?
NPPES lists Indiana license number 01087598A, 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 Allison J. Williams, MD prescribe under Medicare Part D?
In 2024, Allison J. Williams, MD had 380 Medicare Part D claims for 78 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Allison J. Williams, MD's MIPS final score?
The 2023 MIPS final score is 91.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.