Dr. Jeff S. Marshick, DO
- Medicare services, 2024
- 1,338
- Medicare patients, 2024
- 616
- Part D claims, 2024
- 2,928
- Hospital affiliations
- 3
- Industry payments
- $20,547
- 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. Marshick'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. Jeff S. Marshick is a pulmonologist in Clarkston, Michigan
Dr. Marshick practices at Clarkston Surgery Center in Clarkston, Michigan.
Dr. Marshick's NPI, 1811013865, was assigned on March 21, 2007. Dr. Marshick graduated from R Franklin University of Med & Sci/Chicago Medical School in 2003. Dr. Marshick holds Michigan license 5101015601.
- NPI
- 1811013865NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406900307
- NPI enumeration date
- March 21, 2007
- 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
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeff S. Marshick practices at Clarkston Surgery Center in Clarkston, Michigan
Dr. Marshick'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. Jeff S. Marshick is affiliated with 6 sites of care and 2 medical groups
Dr. Marshick's primary practice is Clarkston Surgery Center in Clarkston, Michigan. Dr. Marshick is also affiliated with Trinity Health Oakland Hospital. The medical group on file is Trinity Health Academic Obstetrics & Gynecology - Pontiac (Trinity Health IHA Medical Group). Dmand AI also links Dr. Marshick to 2 more hospitals, 2 group practices and clinics and 1 medical group, 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. Jeff S. Marshick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshick 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 sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeff S. Marshick is one of 451 pulmonologists in Michigan
Pulmonary disease is Dr. Marshick's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Marshick is licensed in Michigan.
Specialties and state licenses
- Pulmonary disease, MichiganPrimary
Pulmonologists near Dr. Marshick
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. Jeff S. Marshick billed Medicare for 1,338 services in 2024
CMS data shows 1,338 Medicare services from Dr. Marshick across 10 procedure codes in 2024, for 616 Medicare patients. Medicare paid $81,894 for them.
Dr. Marshick's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8542024: 1,05423%
- Tests and treatments
- 2023: 1652024: 28472%
Where Dr. Marshick's Medicare services took place, 2024
- In an office1,01776%
- In a facility32124%
Dr. Marshick compared with the Michigan median for pulmonologists, 2024
- Dr. Marshick
- Michigan median
- Medicare services
- 1,338vs 6062.2 times
- Medicare patients
- 616vs 2792.2 times
- Part D claims
- 2,774vs 4336.4 times
Medians across 437 pulmonologists in Michigan with Dmand AI profiles that report each measure.
Dr. Marshick'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. Marshick?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marshick and other pulmonologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeff S. Marshick treated 616 Medicare patients in 2024, average age 72
CMS counts 616 Medicare patients who saw Dr. Marshick in 2024. The largest group is 65 to 74, with 300 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.65, 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. Marshick's median patient age at 68, with 44% women.
Dr. Marshick's Medicare patients by age, 2024
Dr. Marshick's Medicare patients by sex, 2024
- Women29047%
- Men32653%
Chronic conditions among Dr. Marshick's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- COPD48%
- Ischemic heart disease47%
- Diabetes40%
- Heart failure33%
- Chronic kidney disease32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marshick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeff S. Marshick wrote 2,928 Medicare Part D claims in 2024
In 2024, Dr. Marshick wrote 2,928 Medicare Part D claims for 519 patients. 41% of them were for generic drugs. CMS names the drug for 2,774 of them, across 46 drugs with 11 or more claims each, at $2,369,464 in total drug cost. In 2023, CMS named 2,226 claims across 35 drugs.
Dr. Marshick's Part D claims by kind of drug, 2024
- Generic1,197 claims41%
- Brand-name1,731 claims59%
Dr. Marshick'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. Marshick's Part D claims, 2024
- Antibiotics4%105 of 2,928 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: 2,2262024: 2,77425%
Drugs named by CMS: 46 in 2024, 35 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. Jeff S. Marshick takes part in Medicare
Dr. Marshick 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. Jeff S. Marshick received $20,547 in industry payments from 2016 to 2025
CMS Open Payments shows 1,148 general payments to Dr. Marshick from 57 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $3,428.
General payments to Dr. Marshick by program year, 2016 to 2025
General payments to Dr. Marshick by kind, 2016 to 2025
- Food and beverage$20,31999%
- Education$2271%
Companies that paid Dr. Marshick 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. Jeff S. Marshick graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Marshick graduated from R Franklin University of Med & Sci/Chicago Medical School in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jeff S. Marshick'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. Jeff S. Marshick
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. Jeff S. Marshick's NPI number?
Dr. Jeff S. Marshick's NPI number is 1811013865. It was assigned on March 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeff S. Marshick?
Dr. Jeff S. Marshick is a pulmonologist in Clarkston, Michigan. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Jeff S. Marshick practice?
Dr. Marshick practices at 5701 Bow Pointe Drive, Suite 145, Clarkston, MI 48346. Dr. Marshick's primary practice is Clarkston Surgery Center in Clarkston, Michigan. Dmand AI also links Dr. Marshick to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Jeff S. Marshick's office phone number?
The practice phone on file for Dr. Marshick is (847) 875-5107.
What is Dr. Jeff S. Marshick's medical license number?
Dr. Marshick holds Michigan license 5101015601.
Which hospitals is Dr. Jeff S. Marshick affiliated with?
Dr. Marshick is affiliated with Trinity Health Oakland Hospital. Dmand AI links Dr. Marshick to 2 more hospitals.
What medical group is Dr. Jeff S. Marshick part of?
Dr. Marshick is linked to Trinity Health Academic Obstetrics & Gynecology - Pontiac (Trinity Health IHA Medical Group). Dmand AI links Dr. Marshick to 1 more medical group.
Does Dr. Jeff S. Marshick accept Medicare?
Yes. CMS data shows Dr. Marshick billed Medicare for 1,338 services in 2024, and Dr. Marshick accepts Medicare assignment.
How many Medicare patients does Dr. Jeff S. Marshick see?
CMS counts 616 Medicare patients who saw Dr. Marshick in 2024, with an average age of 72.
What services does Dr. Jeff S. Marshick bill to Medicare?
In 2024, Dr. Marshick's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and hospital inpatient care (99231).
Show 4 more questionsShow fewer questions
Where did Dr. Jeff S. Marshick go to medical school?
Dr. Marshick graduated from R Franklin University of Med & Sci/Chicago Medical School in 2003.
What drugs does Dr. Jeff S. Marshick prescribe most?
In 2024 Medicare Part D data, Dr. Marshick's most prescribed drugs by claims were Albuterol Sulfate Hfa, Trelegy Ellipta and Montelukast Sodium.
Has Dr. Jeff S. Marshick received payments from drug or device companies?
CMS Open Payments shows $20,547 in general payments to Dr. Marshick from 57 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Jeff S. Marshick been practicing?
Dr. Marshick graduated from medical school in 2003, 23 years ago.
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