Corey Michael O'Brien, D.O.
Pulmonary Disease Physician · Lansing, MI
Corey Michael O'Brien, D.O. is a pulmonary disease physician with a practice address in Lansing, Michigan, and NPI 1437321213, issued on Apr 1, 2008. Check the license (Michigan CO018050, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Corey Michael O'Brien
- Credential
- D.O.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- CO018050 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1200 E Michigan Ave, Lansing, MI 48912
- Phone
- (517) 484-2760
- Enumerated
- Apr 1, 2008
- Record last updated
- Dec 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (517) 484-3050
- Medicaid ID
- 1437321213 MI
- Medicare enrollment
- Enrolled (PECOS I20090309000429); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2003
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 526 in Michigan → Look up another NPI →
Also registered at 1200 E Michigan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mandar Ajgaonkar, M.D.Internal Medicine Physician1477717452
- Matthew Allswede, MDObstetrics & Gynecology Physician1790792331
- Keith Apelgren, M.D.Surgery Physician1245271188
- John Armstrong, M.D.Pulmonary Disease Physician1831169697
- Alan Atkinson, D.O,Pulmonary Disease Physician1649250879
- Hogay Azizy, M.D.Family Medicine Physician1194159707
Verify Corey Michael O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license CO018050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
1,395 Medicare Part D claims for 299 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 68% of claims.
Most prescribed
- Trelegy Ellipta194 claims
- Albuterol Sulfate Hfa152 claims
- Breo Ellipta90 claims
- Azithromycin68 claims
- Montelukast Sodium64 claims
- Ofev64 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: $4,325.07
68 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. 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
- Edward W Sparrow Hospital AssociationLansing, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Corey Michael O'Brien among 526 pulmonary disease physician records in Michigan
Corey Michael O'Brien, D.O. 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2003 · median 2004 among the 389 with a school on file
- Record last updated2012 · 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 Lansing → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- John Armstrong, M.D.Lansing, MI 489121831169697
- Alan Atkinson, D.O,Lansing, MI 489121649250879
- Michael Burnett, D.O.Lansing, MI 489121730169418
- Jennifer Ely, D.O.Lansing, MI 489121467422618
- John GobelLansing, MI 489121235148362
- Stephanie Hart, MDLansing, MI 489121477905883
- Christopher Huhta, M.D.Lansing, MI 489121104859032
- Ghulam Khaleeq, M.D.Lansing, MI 489121255545224
Common questions
What is Corey Michael O'Brien, D.O.'s NPI number?
Corey Michael O'Brien, D.O.'s National Provider Identifier (NPI) is 1437321213, issued on Apr 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Corey Michael O'Brien, D.O. located?
The NPPES record lists a practice address at 1200 E Michigan Ave, Lansing, MI, 48912. Phone: (517) 484-2760. Providers update this record themselves, so call before visiting.
How can I verify Corey Michael O'Brien, D.O.'s license?
NPPES lists Michigan license number CO018050, 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 Michael O'Brien, D.O. prescribe under Medicare Part D?
In 2024, Corey Michael O'Brien, D.O. had 1,395 Medicare Part D claims for 299 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.