G Blair Dowden, M.D.
Family Medicine Physician · Port Huron, MI
G Blair Dowden, M.D. is a family medicine physician with a practice address in Port Huron, Michigan, and NPI 1750379194, issued on Oct 10, 2005. Check the license (Michigan 4301088847, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- G Blair Dowden
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301088847 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1313 Stone St, Port Huron, MI 48060
- Phone
- (810) 985-2620
- Enumerated
- Oct 10, 2005
- Record last updated
- Apr 17, 2026
- Fax
- (810) 962-8290
- Medicaid ID
- 1750379194 MI
- Medicare enrollment
- Enrolled (PECOS I20060925000427); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 1313 Stone St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Alechko, MDStudent in an Organized Health Care Education/Training Program1720821671
- Ibrahim Ashfaq, MDStudent in an Organized Health Care Education/Training Program1629994512
- Martin Camaj, MDStudent in an Organized Health Care Education/Training Program1912838871
- Sumanpreet Dhaliwal, MDStudent in an Organized Health Care Education/Training Program1396661179
- Maria Fatima, MDStudent in an Organized Health Care Education/Training Program1568391779
- Eric Hartman, M.D.Obstetrics & Gynecology Physician1174557029
Verify G Blair Dowden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301088847Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average family medicine physician in 2024
1,111 Medicare Part D claims for 214 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium73 claims
- Lisinopril44 claims
- Amlodipine Besylate42 claims
- Levothyroxine Sodium39 claims
- Alprazolam29 claims
- Albuterol Sulfate Hfa28 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 affiliation
- Mclaren Port HuronSaint Clair, MI · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
G Blair Dowden among 6,013 family medicine physician records in Michigan
G Blair Dowden, M.D. is one of 6,013 family medicine physician records with a practice address in Michigan. 75% 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, 89% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2003 · median 2008 among the 3,493 with a school on file
- Record last updated2026 · 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 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 family medicine physician records list a practice address in Port Huron
They are 22 of the 1,657 NPPES records with a practice address in Port Huron, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Port Huron → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Cheryl Canto, M.D.Port Huron, MI 480601164423216
- George Carley, D.O.Port Huron, MI 480601386668689
- Pietro Cavataio, M.D., F.A.A.F.P.Port Huron, MI 480601871569798
- Aaron Clark, M.D.Port Huron, MI 480601235113382
- Patricia Florence, D.O.Port Huron, MI 480601649220286
- Jun Garcia, M.DPort Huron, MI 480601750356325
- Patrick Kut, M.D.Port Huron, MI 480601063496123
- Sharon Mitchell, D.O.Port Huron, MI 480601396747234
Common questions
What is G Blair Dowden, M.D.'s NPI number?
G Blair Dowden, M.D.'s National Provider Identifier (NPI) is 1750379194, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is G Blair Dowden, M.D. located?
The NPPES record lists a practice address at 1313 Stone St, Port Huron, MI, 48060. Phone: (810) 985-2620. Providers update this record themselves, so call before visiting.
How can I verify G Blair Dowden, M.D.'s license?
NPPES lists Michigan license number 4301088847, 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 G Blair Dowden, M.D. prescribe under Medicare Part D?
In 2024, G Blair Dowden, M.D. had 1,111 Medicare Part D claims for 214 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.