NPPES file of Aug 9, 2026

Gwen Brooke Griffen, M.D.

Hospitalist Physician · Springfield, IL

Gwen Brooke Griffen, M.D. is a hospitalist physician with a practice address in Springfield, Illinois, and NPI 1326215971, issued on May 13, 2008. Check the license (Illinois 036134294, 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
1326215971
Name
Gwen Brooke Griffen
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
036134294 IL
Self-reported in NPPES; status is on the state search
Practice location
701 N 1St St, Springfield, IL 62781
Phone
(217) 528-7541
Enumerated
May 13, 2008
Record last updated
Jul 14, 2025
Fax
(217) 606-3057
Medicare enrollment
Enrolled (PECOS I20140114000706); accepts Medicare assignment
Medical or professional school
Southern Illinois University School Of Medicine, 2008
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 701 N 1St St

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

  1. Christopher Abraham, MDRadiation Oncology Physician1083900294
  2. Akindele Adaramola, MDHospitalist Physician1548492200
  3. Rami Al-Ayyubi, MDCardiovascular Disease Physician1932772910
  4. Tammy Albert, CRNARegistered Nurse1598785602
  5. James Ambrose, MDAnesthesiology Physician1548249998
  6. Darrel Anderson, MDDiagnostic Radiology Physician1760423032

Verify Gwen Brooke Griffen 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 036134294
    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

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61% fewer Medicare Part D claims than the average hospitalist physician in 2024

201 Medicare Part D claims for 89 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Gwen Griffen201
  2. Specialty average521

Most prescribed

  1. Eliquis20 claims
  2. Pantoprazole Sodium15 claims
  3. Metoprolol Succinate12 claims
  4. Cefpodoxime Proxetil11 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

  1. Springfield Clinic, LLPSpringfield, IL

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

Gwen Brooke Griffen among 1,535 hospitalist physician records in Illinois

Gwen Brooke Griffen, M.D. is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 19% of them.

  • NPI issued2008 · 19% of these records are older, 74% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated2008 · median 2013 among the 1,339 with a school on file
  • Record last updated2025 · 32% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Illinois

There are 1,535 hospitalist physician records in Illinois.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Akindele Adaramola, MDSpringfield, IL 627811548492200
  2. Santhi Arikati, M.DSpringfield, IL 627811073703393
  3. Justin Henry, M.D.Springfield, IL 627811104145747
  4. Chandrakiran Jwala, M.D.Springfield, IL 627811649529306
  5. Sajedabanu Momin, M.D.Springfield, IL 627811427497726
  6. Swapna Nekkanti, M.DSpringfield, IL 627811013108372
  7. Tejas PatelSpringfield, IL 627811619107554
  8. Dushyantkumar Patel, M.D.Springfield, IL 627811952631269

Common questions

What is Gwen Brooke Griffen, M.D.'s NPI number?

Gwen Brooke Griffen, M.D.'s National Provider Identifier (NPI) is 1326215971, issued on May 13, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gwen Brooke Griffen, M.D. located?

The NPPES record lists a practice address at 701 N 1St St, Springfield, IL, 62781. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.

How can I verify Gwen Brooke Griffen, M.D.'s license?

NPPES lists Illinois license number 036134294, 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 Gwen Brooke Griffen, M.D. prescribe under Medicare Part D?

In 2024, Gwen Brooke Griffen, M.D. had 201 Medicare Part D claims for 89 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.