Sara Aguinaga, MD
Internal Medicine Physician · Southfield, MI
Sara Aguinaga, MD is an internal medicine physician with a practice address in Southfield, Michigan, and NPI 1669963526, issued on May 25, 2018. Check the license (Michigan 4301114539, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Sara Aguinaga
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301114539 MI
Self-reported in NPPES; status is on the state search - Practice location
- 29355 Northwestern Hwy Ste 210, Southfield, MI 48034
- Phone
- (248) 356-7726
- Enumerated
- May 25, 2018
- Record last updated
- Jul 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20210809002755); accepts Medicare assignment
- Medical or professional school
- Central Michigan College Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 29355 Northwestern Hwy Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sara Aguinaga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301114539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,383 Medicare Part D claims for 308 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium183 claims
- Amlodipine Besylate154 claims
- Levothyroxine Sodium132 claims
- Losartan Potassium117 claims
- Rosuvastatin Calcium71 claims
- Metformin Hcl59 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.
Industry payments in 2024: $66.07
4 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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
- Legacy Healthcare Services IncTroy, MI
- Oakwood Ambulatory LLCBelleville, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Aguinaga among 5,735 internal medicine physician records in Michigan
Sara Aguinaga, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 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 2018, is newer than 74% of them.
- NPI issued2018 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
200 internal medicine physician records list a practice address in Southfield
They are 200 of the 5,689 NPPES records with a practice address in Southfield, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Southfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Sumner CamisaSouthfield, MI 480341033100540
- Charles Godoshian, M.D.Southfield, MI 480341699769190
- David Jacobs, MDSouthfield, MI 480341437158185
- Edward Mishal, D.OSouthfield, MI 480341043200132
- Leon Morris, DOSouthfield, MI 480341700885159
- Sindhu Ramesh, M.D.Southfield, MI 480341396730206
Common questions
What is Sara Aguinaga, MD's NPI number?
Sara Aguinaga, MD's National Provider Identifier (NPI) is 1669963526, issued on May 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sara Aguinaga, MD located?
The NPPES record lists a practice address at 29355 Northwestern Hwy Ste 210, Southfield, MI, 48034. Phone: (248) 356-7726. Providers update this record themselves, so call before visiting.
How can I verify Sara Aguinaga, MD's license?
NPPES lists Michigan license number 4301114539, 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 Sara Aguinaga, MD prescribe under Medicare Part D?
In 2024, Sara Aguinaga, MD had 2,383 Medicare Part D claims for 308 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.