Corey O'Brien, D.O.
NPI 1437321213 · Pulmonary Disease Physician · Lansing, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Corey O'Brien, D.O. is a Pulmonary Disease Physician provider in Lansing, MI (NPI 1437321213).
Provider details
- NPI number
- 1437321213
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- CO018050 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,052 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Test to Examine How Well the Lungs Exchange Gases94729 | 198 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 149 | $75 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 146 | $10 |
| Test to Determine Lung Volumes Using Sensors94726 | 126 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $93 |
| Test to Measure Expiratory Airflow and Volume94010 | 79 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 194 | 63 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 152 | 76 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 90 | 25 |
| Azithromycin | 68 | 26 |
| Montelukast Sodium | 64 | 28 |
| Nintedanib Esylatebrand: Ofev | 64 | — |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,325 across 68 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-01
- Last updated
- 2012-12-18
Frequently asked questions
- What is Corey O'Brien's NPI number?
- Corey O'Brien's National Provider Identifier (NPI) is 1437321213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Corey O'Brien's specialty?
- Corey O'Brien is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Corey O'Brien located?
- Corey O'Brien's practice location on file with NPPES is 1200 E Michigan Ave, Lansing, MI 48912-1800.
- What is Corey O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Corey O'Brien is (517) 484-2760.
- Does Corey O'Brien accept Medicare?
- Corey O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Corey O'Brien's NPI active?
- Yes — Corey O'Brien's NPI (1437321213) is active in the NPPES registry as of the last update on 2012-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.