NPPES file of Aug 9, 2026

Gregg J. Eichman, DO

Family Medicine Physician · Oklahoma City, OK

Gregg J. Eichman, DO is a family medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1427088160, issued on Jul 4, 2006. Check the license (Oklahoma 3186, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1427088160
Name
Gregg J. Eichman
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
3186 OK
Self-reported in NPPES; status is on the state search
Practice location
608 NW 9TH St, Oklahoma City, OK 73102
Phone
(405) 231-3000
Enumerated
Jul 4, 2006
Record last updated
Oct 20, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(405) 231-3073
Medicaid ID
100064220A OK
Medicare enrollment
Enrolled (PECOS I20051212000664); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 1993
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 608 NW 9TH St

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

  1. Robert Abell, MDFamily Medicine Physician1336179126
  2. Syed Ahmed, M.D.Family Medicine Physician1396123535
  3. Tauseef Ali, M.D.Gastroenterology Physician1417096041
  4. David Allen, M.D.Pulmonary Disease Physician1154398410
  5. Robert Antosh, M.D.Family Medicine Physician1346771250
  6. Matthew Austin, DOInternal Medicine Physician1861753287

Verify Gregg J. Eichman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 3186
    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 Oklahoma 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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88% fewer Medicare Part D claims than the average family medicine physician in 2024

436 Medicare Part D claims for 131 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Gregg Eichman436
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate38 claims
  2. Fluticasone Propionate26 claims
  3. Lisinopril19 claims
  4. Gabapentin16 claims
  5. Hydrocodone-Acetaminophen13 claims
  6. Furosemide12 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. Saints Medical Group, LLCOklahoma City, OK

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

Gregg J. Eichman among 2,303 family medicine physician records in Oklahoma

Gregg J. Eichman, DO is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 53% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1993 · median 2008 among the 1,407 with a school on file
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

478 family medicine physician records list a practice address in Oklahoma City

They are 478 of the 22,359 NPPES records with a practice address in Oklahoma City, and 2,303 family medicine physician records in Oklahoma.

The 8 family medicine physician records with the nearest ZIP codes

  1. Robert Abell, MDOklahoma City, OK 731021336179126
  2. Richard Boothe, MDOklahoma City, OK 731021417982596
  3. Jeffrey Hirsch, MDOklahoma City, OK 731021417988957
  4. Gerry Holland, DOOklahoma City, OK 731021356381891
  5. Helen Leblanc, MDOklahoma City, OK 731021306871371
  6. Jan Miller, MDOklahoma City, OK 731021841211752
  7. Yen Dung Nguyen, M.D.Oklahoma City, OK 731021154404648
  8. Cheyn Onarecker, MDOklahoma City, OK 731021245260926

Common questions

What is Gregg J. Eichman, DO's NPI number?

Gregg J. Eichman, DO's National Provider Identifier (NPI) is 1427088160, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregg J. Eichman, DO located?

The NPPES record lists a practice address at 608 NW 9TH St, Oklahoma City, OK, 73102. Phone: (405) 231-3000. Providers update this record themselves, so call before visiting.

How can I verify Gregg J. Eichman, DO's license?

NPPES lists Oklahoma license number 3186, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregg J. Eichman, DO prescribe under Medicare Part D?

In 2024, Gregg J. Eichman, DO had 436 Medicare Part D claims for 131 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.