Gregory J. Streff, DO
Pulmonary Disease Physician · Grand Blanc, MI
Gregory J. Streff, DO is a pulmonary disease physician with a practice address in Grand Blanc, Michigan, and NPI 1558314005, issued on May 18, 2006. Check the license (Michigan 5101008684, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory J. Streff
- Credential
- DO
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 5101008684 MI
Self-reported in NPPES; status is on the state search - Practice location
- 9450 S Saginaw RD, Grand Blanc, MI 48439
- Phone
- (810) 695-4000
- Enumerated
- May 18, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (810) 695-4055
- Medicaid ID
- 3361051 MI
- Medicare enrollment
- Enrolled (PECOS I20040426001827); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1983
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 526 in Michigan → Look up another NPI →
Also registered at 9450 S Saginaw RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carol Scamehorn, PAPhysician Assistant1922133214
- Hemant Thawani, MDEndocrinology, Diabetes & Metabolism Physician1770545964
- Paula Whalen, NPAcute Care Nurse Practitioner1174911846
Verify Gregory J. Streff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101008684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average pulmonary disease physician in 2024
2,083 Medicare Part D claims for 540 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D.
Most prescribed
- Montelukast Sodium276 claims
- Albuterol Sulfate Hfa208 claims
- Trelegy Ellipta192 claims
- Carbidopa-Levodopa Er97 claims
- Pantoprazole Sodium91 claims
- Prednisone90 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 MIPS final score for 2023 (Medicare payment program): 24.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,330.35
106 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 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 one group practice
- Michigan Lung And Critical Care Specialists, PCGrand Blanc, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory J. Streff among 526 pulmonary disease physician records in Michigan
Gregory J. Streff, DO is one of 526 pulmonary disease physician records with a practice address in Michigan. 86% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 56% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1983 · median 2004 among the 389 with a school on file
- Record last updated2026 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Michigan
There are 526 pulmonary disease physician records in Michigan.
All 526 in Michigan → Every provider in Grand Blanc → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Muhammad Aboudan, MDGrand Blanc, MI 484391457308702
- Missa Abuzamel, DOGrand Blanc, MI 484391689232951
- Mohammad Al-Ali, MDGrand Blanc, MI 484391629275789
- Mohammed Bayasi, MDGrand Blanc, MI 484391528170073
- Omar Khorfan, D.O.Grand Blanc, MI 484391720345036
- Abi Waqas, M.D.Grand Blanc, MI 484391396988168
- Dalia Zakri, M.D.Grand Blanc, MI 484391750731030
- Ahmad Hannan, M.D.Holly, MI 484421104938638
Common questions
What is Gregory J. Streff, DO's NPI number?
Gregory J. Streff, DO's National Provider Identifier (NPI) is 1558314005, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Streff, DO located?
The NPPES record lists a practice address at 9450 S Saginaw RD, Grand Blanc, MI, 48439. Phone: (810) 695-4000. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Streff, DO's license?
NPPES lists Michigan license number 5101008684, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory J. Streff, DO prescribe under Medicare Part D?
In 2024, Gregory J. Streff, DO had 2,083 Medicare Part D claims for 540 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Gregory J. Streff, DO's MIPS final score?
The 2023 MIPS final score is 24.3 of 100. 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.