NPPES file of Aug 9, 2026

Hiram E. Isaac, M.D.

Anesthesiology Physician · Elgin, IL

Hiram E. Isaac, M.D. is an anesthesiology physician with a practice address in Elgin, Illinois, and NPI 1114311131, issued on Mar 27, 2015. Check the license (Illinois 036159131, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114311131
Name
Hiram E. Isaac
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
036159131 IL
22597 PR
Self-reported in NPPES; status is on the state search
Practice location
1425 N Randall RD, Elgin, IL 60123
Phone
(847) 742-9800
Enumerated
Mar 27, 2015
Record last updated
Jul 22, 2025
Fax
(224) 783-3002
Medicare enrollment
Enrolled (PECOS I20250702001304); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1425 N Randall RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Julie Anderson, D.O.Pediatrics Physician1124438783
  2. Danilo Aparicio Fernandez, M.D.Internal Medicine Physician1184019564
  3. Dalia Ascencio Yanez, APNFamily Nurse Practitioner1285091934
  4. Amanda AugerRegistered Dietitian1992670061
  5. Joanna Barclay, MDPain Medicine (Anesthesiology) Physician1932210978
  6. Jennifer Barham, ANP-BCAdult Health Nurse Practitioner1184987497

Verify Hiram E. Isaac in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036159131
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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82% more Medicare Part D claims than the average anesthesiology physician in 2024

730 Medicare Part D claims for 256 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 129 claims were for opioids.

  1. Hiram Isaac730
  2. Specialty average402

Most prescribed

  1. Meloxicam144 claims
  2. Gabapentin107 claims
  3. Ibuprofen93 claims
  4. Tramadol Hcl54 claims
  5. Oxycodone-Acetaminophen39 claims
  6. Naproxen36 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: $97.95

4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hiram Isaac$97.95
  2. Specialty average$669.59

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationElgin, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

27 anesthesiology physician records list a practice address in Elgin

They are 27 of the 2,268 NPPES records with a practice address in Elgin, and 2,575 anesthesiology physician records in Illinois.

Other anesthesiology physician records in Illinois

  1. Ossama Abdellatif, MDBerwyn, IL1760436786
  2. Akram Abdoue, M.D.Oak Lawn, IL1992752489
  3. Hassan Aboumerhi, M.D.Chicago, IL1336528637
  4. Jake Abramowicz, DOChicago, IL1235823782
  5. Antonio Abrego, MDChicago, IL1336236157
  6. Jose Abreu, M.D.Tinley Park, IL1538287388
  7. Max Ackerman, BSChicago, IL1083362644
  8. Sean Adams, M.D.Naperville, IL1598713661
  9. Simon Adanin, D.O.Chicago, IL1922241124
  10. Timothy Ade, MDUrbana, IL1043552672

Common questions

What is Hiram E. Isaac, M.D.'s NPI number?

Hiram E. Isaac, M.D.'s National Provider Identifier (NPI) is 1114311131, issued on Mar 27, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hiram E. Isaac, M.D. located?

The NPPES record lists a practice address at 1425 N Randall RD, Elgin, IL, 60123. Phone: (847) 742-9800. Providers update this record themselves, so call before visiting.

How can I verify Hiram E. Isaac, M.D.'s license?

NPPES lists Illinois license number 036159131, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hiram E. Isaac, M.D. prescribe under Medicare Part D?

In 2024, Hiram E. Isaac, M.D. had 730 Medicare Part D claims for 256 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.