NPPES file of Aug 9, 2026

Shahid B. Ilahi, M.D.

Internal Medicine Physician · Lake Barrington, IL

Shahid B. Ilahi, M.D. is an internal medicine physician with a practice address in Lake Barrington, Illinois, and NPI 1508867078, issued on Aug 9, 2005. Check the license (Illinois 036081783, 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
1508867078
Name
Shahid B. Ilahi
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036081783 IL
0036081783 IL
Self-reported in NPPES; status is on the state search
Practice location
22N285 Pepper RD, Lake Barrington, IL 60010
Phone
(630) 952-1412
Enumerated
Aug 9, 2005
Record last updated
Dec 16, 2025
Medicare enrollment
Enrolled (PECOS I20040713001539); 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 22N285 Pepper RD

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

  1. Derek Archer, M.D.Body Imaging Physician1629164256
  2. David Crandall, M.D.Obstetrics & Gynecology Physician1033195383
  3. Thomas Meyer, M.D.Obstetrics & Gynecology Physician1144206012

Verify Shahid B. Ilahi 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 036081783
    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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58% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,336 Medicare Part D claims for 412 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Shahid Ilahi1,336
  2. Specialty average3,176

Most prescribed

  1. Pantoprazole Sodium377 claims
  2. Famotidine115 claims
  3. Sod Sulf-Potass Sulf-Mag Sulf110 claims
  4. Omeprazole72 claims
  5. Sucralfate54 claims
  6. Hydrocortisone45 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: $1,551.02

74 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shahid Ilahi$1,551.02
  2. Specialty average$1,303.06

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

Bills Medicare through 2 group practices

  1. George N Atia MD SCLake Barrington, IL
  2. Siu Physicians And Surgeons IncSpringfield, IL

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

Shahid B. Ilahi among 7,238 internal medicine physician records in Illinois

Shahid B. Ilahi, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1982 · median 2003 among the 3,580 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 internal medicine physician records list a practice address in Lake Barrington

They are 2 of the 152 NPPES records with a practice address in Lake Barrington, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Roseann Brady, D.O.North Barrington, IL 600101477604106
  2. Melinda Einfalt, MDBarrington, IL 600101821084393
  3. Behzad Farah, MDBarrington, IL 600101689630915
  4. Rachel George, MD, MBASouth Barrington, IL 600101639109002
  5. John Gong, MDBarrington, IL 600101962414623
  6. Galina Goode, M.D.Barrington, IL 600101336209618
  7. Leo Kelly, M.D.Barrington, IL 600101386704666
  8. Seng Leong, MDBarrington, IL 600101487750790

Common questions

What is Shahid B. Ilahi, M.D.'s NPI number?

Shahid B. Ilahi, M.D.'s National Provider Identifier (NPI) is 1508867078, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Shahid B. Ilahi, M.D. located?

The NPPES record lists a practice address at 22N285 Pepper RD, Lake Barrington, IL, 60010. Phone: (630) 952-1412. Providers update this record themselves, so call before visiting.

How can I verify Shahid B. Ilahi, M.D.'s license?

NPPES lists Illinois license number 036081783, 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 Shahid B. Ilahi, M.D. prescribe under Medicare Part D?

In 2024, Shahid B. Ilahi, M.D. had 1,336 Medicare Part D claims for 412 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.