NPPES file of Aug 9, 2026

Adam Spain, D.O.

Internal Medicine Physician · Elgin, IL

Adam Spain, D.O. is an internal medicine physician with a practice address in Elgin, Illinois, and NPI 1659758068, issued on May 5, 2015. Check the license 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
1659758068
Name
Adam Spain
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
60947 CO
Self-reported in NPPES; status is on the state search
Practice location
1425 N Randall RD, Elgin, IL 60123
Phone
(847) 742-9800
Enumerated
May 5, 2015
Record last updated
Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190725000585); 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 Adam Spain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

96 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Adam Spain96
  2. Specialty average3,176

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

  1. Advocate Health And Hospitals CorporationBuffalo Grove, IL

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

Adam Spain among 7,238 internal medicine physician records in Illinois

Adam Spain, D.O. 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 2015, is newer than 61% of them.

  • NPI issued2015 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2015 · median 2003 among the 3,580 with a school on file
  • Record last updated2021 · 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).

62 internal medicine physician records list a practice address in Elgin

They are 62 of the 2,268 NPPES records with a practice address in Elgin, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Richard Baley, M.D.Elgin, IL 601231184693327
  2. Jawed Ehsan, MDElgin, IL 601231114901501
  3. John Fiedler, M.D.Elgin, IL 601231487623716
  4. Dennis Flynn, M.D.Elgin, IL 601231295704435
  5. Jeffrey Garb, M.D.Elgin, IL 601231023063237
  6. Anandita Gephart, M.D.Elgin, IL 601231790709343
  7. Michael Hernandez, M.D.Elgin, IL 601231972501096
  8. Ronald Hirsch, M.D.Elgin, IL 601231467450585

Common questions

What is Adam Spain, D.O.'s NPI number?

Adam Spain, D.O.'s National Provider Identifier (NPI) is 1659758068, issued on May 5, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Adam Spain, D.O. 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 Adam Spain, D.O.'s license?

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 Adam Spain, D.O. prescribe under Medicare Part D?

In 2024, Adam Spain, D.O. had 96 Medicare Part D claims for 69 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.