Gregory James Haack, MD
Internal Medicine Physician · Wright Patterson Afb, OH
Gregory James Haack, MD is an internal medicine physician with a practice address in Wright Patterson Afb, Ohio, and NPI 1235125261, issued on Sep 26, 2005. Check the license (Ohio 35.146219, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory James Haack
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 35.146219 OH
01056726A IN
Self-reported in NPPES; status is on the state search - Practice location
- 4881 Sugar Maple Dr, Wright Patterson Afb, OH 45433
- Phone
- (937) 257-9926
- Enumerated
- Sep 26, 2005
- Record last updated
- Apr 24, 2024
- Medicare enrollment
- Enrolled (PECOS I20230131002865); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 4881 Sugar Maple Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Candace Adedokun, MDStudent in an Organized Health Care Education/Training Program1003639121
- Olivia Akah, PHARMDPharmacist1124744941
- Hassan Al-ShammaaHospitalist Physician1497173850
- Mark Albright, CRNACertified Registered Nurse Anesthetist1124478771
- Talib Ali, M.D.Preventive Medicine/Occupational Environmental Medicine Physician1801900808
- Jacob AllgoodInternal Medicine Physician1598843708
Verify Gregory James Haack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.146219Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
409 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Gabapentin38 claims
- Furosemide26 claims
- Duloxetine Hcl24 claims
- Lisinopril18 claims
- Amlodipine Besylate17 claims
- Eliquis17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $95.18
1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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.
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
- Alliance Physicians IncMiamisburg, OH
- South Dayton Acute Care Consultants, IncDayton, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory James Haack among 5,277 internal medicine physician records in Ohio
Gregory James Haack, MD is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% 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, 87% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2000 · median 2006 among the 3,414 with a school on file
- Record last updated2024 · 58% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 internal medicine physician records list a practice address in Wright Patterson Afb
They are 16 of the 443 NPPES records with a practice address in Wright Patterson Afb, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Wright Patterson Afb → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jacob AllgoodWright Patterson Afb, OH 454331598843708
- Keith Beam, MD, MPH, FACPWright Patterson Afb, OH 454331053670547
- Vincent Bonanno, MDWpafb, OH 454331447225735
- Christopher Brown, M.D.Wpafb, OH 454331457348229
- Kathryn Burtson, M.D.Wright Patterson Afb, OH 454331982831780
- Alison Helmkamp, DOWright Patterson Afb, OH 454331366427890
- Amy Hicks, MDWright Patterson Afb, OH 454331104808328
- Christopher Keirns, D.O.Wright Patterson Afb, OH 454331275638116
Common questions
What is Gregory James Haack, MD's NPI number?
Gregory James Haack, MD's National Provider Identifier (NPI) is 1235125261, issued on Sep 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory James Haack, MD located?
The NPPES record lists a practice address at 4881 Sugar Maple Dr, Wright Patterson Afb, OH, 45433. Phone: (937) 257-9926. Providers update this record themselves, so call before visiting.
How can I verify Gregory James Haack, MD's license?
NPPES lists Ohio license number 35.146219, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory James Haack, MD prescribe under Medicare Part D?
In 2024, Gregory James Haack, MD had 409 Medicare Part D claims for 32 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Gregory James Haack, MD's MIPS final score?
The 2023 MIPS final score is 77 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.