Dr. Mary M. Oconnor, DO
- Medicare services, 2024
- 1,312
- Medicare patients, 2024
- 449
- Part D claims, 2024
- 1,958
- Hospital affiliations
- 4
- Industry payments
- $10,157
- Practice address
- 5701 Bow Pointe Drive, Suite 145, Clarkston, MI 48346
- Practice phone
- Call (847) 875-5107
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Clarkston Surgery Center
Surgery Center - Medicare-Certified · Clarkston, Michigan
Find Dr. Oconnor's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary M. Oconnor is a pulmonologist in Clarkston, Michigan
Dr. Oconnor practices at Clarkston Surgery Center in Clarkston, Michigan.
Dr. Oconnor's NPI, 1851401129, was assigned on August 30, 2006. Dr. Oconnor graduated from Michigan State University College of Osteopathic Medicine in 2002. Dr. Oconnor holds Michigan license 5101015287.
- NPI
- 1851401129NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799790390
- NPI enumeration date
- August 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 875-5107
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary M. Oconnor practices at Clarkston Surgery Center in Clarkston, Michigan
Dr. Oconnor's primary practice is Clarkston Surgery Center, at 5701 Bow Pointe Drive, Suite 145, Clarkston, MI 48346. The practice phone is (847) 875-5107.
- Clarkston Surgery Center5701 Bow Pointe Drive, Suite 145, Clarkston, MI 48346Phone(847) 875-5107
Source: Dmand AI Affiliation Data
Dr. Mary M. Oconnor is affiliated with 6 sites of care and 1 medical group
Dr. Oconnor's primary practice is Clarkston Surgery Center in Clarkston, Michigan. Dr. Oconnor is also affiliated with Corewell Health William Beaumont University Hospital. The medical group on file is Pulmonary And Critical Care Medicine Consultants. Dmand AI also links Dr. Oconnor to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary M. Oconnor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oconnor practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Clarkston Surgery Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary M. Oconnor is one of 451 pulmonologists in Michigan
Pulmonary disease is Dr. Oconnor's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Oconnor is licensed in Michigan.
Specialties and state licenses
- Pulmonary disease, MichiganPrimary
Pulmonologists near Dr. Oconnor
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary M. Oconnor billed Medicare for 1,312 services in 2024
CMS data shows 1,312 Medicare services from Dr. Oconnor across 13 procedure codes in 2024, for 449 Medicare patients. Medicare paid $98,048 for them.
Dr. Oconnor's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9492024: 1,04810%
- Tests and treatments
- 2023: 1962024: 26435%
Where Dr. Oconnor's Medicare services took place, 2024
- In an office75558%
- In a facility55742%
Dr. Oconnor compared with the Michigan median for pulmonologists, 2024
- Dr. Oconnor
- Michigan median
- Medicare services
- 1,312vs 6062.2 times
- Medicare patients
- 449vs 27961% above
- Part D claims
- 1,773vs 4334.1 times
Medians across 437 pulmonologists in Michigan with Dmand AI profiles that report each measure.
Dr. Oconnor's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Oconnor?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oconnor and other pulmonologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary M. Oconnor treated 449 Medicare patients in 2024, average age 74
CMS counts 449 Medicare patients who saw Dr. Oconnor in 2024. The largest group is 65 to 74, with 192 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.93, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Oconnor's median patient age at 69, with 54% women.
Dr. Oconnor's Medicare patients by age, 2024
Dr. Oconnor's Medicare patients by sex, 2024
- Women26459%
- Men18541%
Chronic conditions among Dr. Oconnor's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease53%
- COPD49%
- Diabetes48%
- Heart failure42%
- Atrial fibrillation37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oconnor's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary M. Oconnor wrote 1,958 Medicare Part D claims in 2024
In 2024, Dr. Oconnor wrote 1,958 Medicare Part D claims for 321 patients. 45% of them were for generic drugs. CMS names the drug for 1,773 of them, across 35 drugs with 11 or more claims each, at $907,314 in total drug cost. In 2023, CMS named 1,411 claims across 30 drugs.
Dr. Oconnor's Part D claims by kind of drug, 2024
- Generic879 claims45%
- Brand-name1,079 claims55%
Dr. Oconnor's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Oconnor's Part D claims, 2024
- Antibiotics6%127 of 1,958 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4112024: 1,77326%
Drugs named by CMS: 35 in 2024, 30 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mary M. Oconnor takes part in Medicare
Dr. Oconnor accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary M. Oconnor received $10,157 in industry payments from 2016 to 2025
CMS Open Payments shows 547 general payments to Dr. Oconnor from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,108.
General payments to Dr. Oconnor by program year, 2016 to 2025
General payments to Dr. Oconnor by kind, 2016 to 2025
- Food and beverage$9,55394%
- Education$6056%
Companies that paid Dr. Oconnor the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary M. Oconnor graduated from Michigan State University College of Osteopathic Medicine
Dr. Oconnor graduated from Michigan State University College of Osteopathic Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary M. Oconnor's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary M. Oconnor
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mary M. Oconnor's NPI number?
Dr. Mary M. Oconnor's NPI number is 1851401129. It was assigned on August 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary M. Oconnor?
Dr. Mary M. Oconnor is a pulmonologist in Clarkston, Michigan. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mary M. Oconnor practice?
Dr. Oconnor practices at 5701 Bow Pointe Drive, Suite 145, Clarkston, MI 48346. Dr. Oconnor's primary practice is Clarkston Surgery Center in Clarkston, Michigan. Dmand AI also links Dr. Oconnor to 3 hospitals and 1 group practice or clinic.
What is Dr. Mary M. Oconnor's office phone number?
The practice phone on file for Dr. Oconnor is (847) 875-5107.
What is Dr. Mary M. Oconnor's medical license number?
Dr. Oconnor holds Michigan license 5101015287.
Which hospitals is Dr. Mary M. Oconnor affiliated with?
Dr. Oconnor is affiliated with Corewell Health William Beaumont University Hospital. Dmand AI links Dr. Oconnor to 3 more hospitals.
What medical group is Dr. Mary M. Oconnor part of?
Dr. Oconnor is linked to Pulmonary And Critical Care Medicine Consultants.
Does Dr. Mary M. Oconnor accept Medicare?
Yes. CMS data shows Dr. Oconnor billed Medicare for 1,312 services in 2024, and Dr. Oconnor accepts Medicare assignment.
How many Medicare patients does Dr. Mary M. Oconnor see?
CMS counts 449 Medicare patients who saw Dr. Oconnor in 2024, with an average age of 74.
What services does Dr. Mary M. Oconnor bill to Medicare?
In 2024, Dr. Oconnor's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and hospital inpatient care (99232).
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Where did Dr. Mary M. Oconnor go to medical school?
Dr. Oconnor graduated from Michigan State University College of Osteopathic Medicine in 2002.
What drugs does Dr. Mary M. Oconnor prescribe most?
In 2024 Medicare Part D data, Dr. Oconnor's most prescribed drugs by claims were Albuterol Sulfate Hfa, Trelegy Ellipta and Breztri Aerosphere.
Has Dr. Mary M. Oconnor received payments from drug or device companies?
CMS Open Payments shows $10,157 in general payments to Dr. Oconnor from 41 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mary M. Oconnor been practicing?
Dr. Oconnor graduated from medical school in 2002, 24 years ago.
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