Registry data as of Aug 27, 2026

Abigail Buckholz, MD

Internal Medicine Physician · Springfield, IL

Abigail Buckholz, MD is an internal medicine physician with a practice address in Springfield, Illinois, and NPI 1851912455, issued on May 5, 2020. Check the license (Illinois 036.165262, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1851912455
Name
Abigail Buckholz
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036.165262 IL
Self-reported in NPPES; status is on the state search
Practice location
3225 Hedley RD, Springfield, IL 62711
Phone
(217) 726-7300
Enumerated
May 5, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3225 Hedley RD

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

  1. Melissa Adams, APNPsychiatric/Mental Health Nurse Practitioner1083596217
  2. Richard Alexander, M.D.Psychiatry Physician1972632438
  3. Patricia Baumann, MDPsychiatry Physician1407349152
  4. Rodica Brisan, M.D.Psychiatry Physician1447265145
  5. Catherine Fox, M.D.Psychiatry Physician1699874735
  6. Constance Habenschuss, APNPsychiatric/Mental Health Nurse Practitioner1467939140

Verify Abigail Buckholz 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 036.165262
    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.

86% fewer Medicare Part D claims than the average internal medicine physician in 2024

397 Medicare Part D claims for 89 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Abigail Buckholz397
  2. Specialty average2,785

Most prescribed

  1. Mirtazapine28 claims
  2. Clozapine23 claims
  3. Fluoxetine Hcl22 claims
  4. Trazodone Hcl20 claims
  5. Duloxetine Hcl18 claims
  6. Oxcarbazepine17 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.

One hospital or facility affiliation

  1. Memorial Physician ServicesSpringfield, IL

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

260 internal medicine physician records list a Springfield practice address

They are 260 of the 4,997 NPPES records with a Springfield practice address, and 8,522 internal medicine physician records in Illinois.

Other internal medicine physician records in Illinois

  1. Peter Abadeer, D.O.Bloomington, IL1760469522
  2. Pamela Abadi, D.O.Winfield, IL1588820179
  3. Motaz Abas, MDPeoria, IL1215510201
  4. Elias Abate, M.D.Chicago, IL1336712199
  5. Maliha Abbas, D.O.Chicago, IL1174963920
  6. Zareena Abbas, MDChicago, IL1427078872
  7. Abu Abbasi, MDChicago, IL1083243877
  8. Ayesha Abbasi, MDChicago, IL1376216705
  9. Khalda Abbasi, MDNaperville, IL1487705240
  10. Misha Abbasi, MDChicago, IL1770111635

Common questions

What is Abigail Buckholz, MD's NPI number?

Abigail Buckholz, MD's National Provider Identifier (NPI) is 1851912455, issued on May 5, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Abigail Buckholz, MD located?

The NPPES record lists a practice address at 3225 Hedley RD, Springfield, IL, 62711. Phone: (217) 726-7300. Providers update this record themselves, so call before visiting.

How can I verify Abigail Buckholz, MD's license?

NPPES lists Illinois license number 036.165262, 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 Abigail Buckholz, MD prescribe under Medicare Part D?

In 2024, Abigail Buckholz, MD had 397 Medicare Part D claims for 89 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.