Corey R. Dean, M.D.
Internal Medicine Physician · Ypsilanti, MI
Corey R. Dean, M.D. is an internal medicine physician with a practice address in Ypsilanti, Michigan, and NPI 1235166042, issued on Jun 27, 2006. Check the license (Michigan 4301082447, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Corey R. Dean
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301082447 MI
Self-reported in NPPES; status is on the state search - Practice location
- 111 N Huron St, Ypsilanti, MI 48197
- Phone
- (734) 547-7977
- Enumerated
- Jun 27, 2006
- Record last updated
- Dec 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (734) 547-7978
- Medicare enrollment
- Enrolled (PECOS I20040617001302); accepts Medicare assignment
- 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 111 N Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Suzette Lavigne, MDInternal Medicine Physician1891722740
- Patricia McNally, MDInternal Medicine Physician1417976622
- Sara Platte, M.D.Internal Medicine Physician1336359462
- John Watt, MDAdolescent Medicine (Internal Medicine) Physician1619994597
Verify Corey R. Dean in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301082447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% more Medicare Part D claims than the average internal medicine physician in 2024
5,280 Medicare Part D claims for 379 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 173 claims were for opioids.
Most prescribed
- Atorvastatin Calcium394 claims
- Amlodipine Besylate242 claims
- Metformin Hcl227 claims
- Lisinopril199 claims
- Losartan Potassium184 claims
- Levothyroxine Sodium141 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: $150.00
1 payment: food and beverage; the largest payer was NeuroLogica Corporation, a subsidiary of Samsung Electronics Co., Ltd. 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 one group practice
- Iha Health Services CorporationChelsea, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Corey R. Dean among 5,735 internal medicine physician records in Michigan
Corey R. Dean, M.D. 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1999 · median 2006 among the 3,564 with a school on file
- Record last updated2017 · 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).
198 internal medicine physician records list a practice address in Ypsilanti
They are 198 of the 3,625 NPPES records with a practice address in Ypsilanti, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Ypsilanti → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sabah Al-Attar, M.DYpsilanti, MI 481971285697821
- Imad Ayyar, M.D.Ypsilanti, MI 481971073515268
- Daniel Cahill, M.D.Ypsilanti, MI 481971801897376
- Jack Carman, M.D.Ypsilanti, MI 481971285635474
- John Hopper, MDYpsilanti, MI 481971184680977
- Eugene Liu, M.D.Ypsilanti, MI 481971770584930
- Shyam Mahesh, M.D.Ypsilanti, MI 481971962407569
- Marc Mastropaolo, DOYpsilanti, MI 481971982667002
Common questions
What is Corey R. Dean, M.D.'s NPI number?
Corey R. Dean, M.D.'s National Provider Identifier (NPI) is 1235166042, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Corey R. Dean, M.D. located?
The NPPES record lists a practice address at 111 N Huron St, Ypsilanti, MI, 48197. Phone: (734) 547-7977. Providers update this record themselves, so call before visiting.
How can I verify Corey R. Dean, M.D.'s license?
NPPES lists Michigan license number 4301082447, 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 Corey R. Dean, M.D. prescribe under Medicare Part D?
In 2024, Corey R. Dean, M.D. had 5,280 Medicare Part D claims for 379 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.