Dr. Mark Joseph Heinzelmann, MD
- Medicare services, 2024
- 208
- Medicare patients, 2024
- 214
- Part D claims, 2023
- 583
- Industry payments
- $443
- State license
- 1
- Practice address
- 4599 Towne Centre Rd, Saginaw, MI 48604
- Practice phone
- Call (989) 497-3096
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension St Mary's Hospital Health Center at Towne Center
Saginaw, Michigan
Find Dr. Heinzelmann's professional email, personal email and mobile number
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Dr. Mark Joseph Heinzelmann is a colorectal surgeon in Saginaw, Michigan
Dr. Heinzelmann practices at Ascension St Mary's Hospital Health Center at Towne Center in Saginaw, Michigan.
Dr. Heinzelmann's NPI, 1013005578, was assigned on October 10, 2006. Dr. Heinzelmann holds Michigan license 4301046103.
- NPI
- 1013005578NPI Registry (opens in a new tab)
- NPI enumeration date
- October 10, 2006
- NPI status
- Active
- Practice phone
- (989) 497-3096
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark Joseph Heinzelmann practices at Ascension St Mary's Hospital Health Center at Towne Center in Saginaw, Michigan
Dr. Heinzelmann's primary practice is Ascension St Mary's Hospital Health Center at Towne Center, at 4599 Towne Centre Rd, Saginaw, MI 48604 in Saginaw County. The practice phone is (989) 497-3096.
- Ascension St Mary's Hospital Health Center at Towne Center4599 Towne Centre Rd, Saginaw, MI 48604 · Saginaw CountyPhone(989) 497-3096
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Joseph Heinzelmann is affiliated with 1 site of care
Dr. Heinzelmann's primary practice is Ascension St Mary's Hospital Health Center at Towne Center in Saginaw, Michigan.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Mark Joseph Heinzelmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Heinzelmann practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St Mary's Hospital Health Center at Towne Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Joseph Heinzelmann is one of 68 colorectal surgeons in Michigan
Colon and rectal surgery is Dr. Heinzelmann's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Heinzelmann is licensed in Michigan.
Specialties and state licenses
- Colon and rectal surgery, MichiganPrimary
Colorectal surgeons near Dr. Heinzelmann
Counts of colorectal surgeons 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. Mark Joseph Heinzelmann billed Medicare for 208 services in 2024
CMS data shows 208 Medicare services from Dr. Heinzelmann across 4 procedure codes in 2024, for 214 Medicare patients. Medicare paid $35,218 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Heinzelmann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2002024: 15125%
- Other services
- 2023: 872024: 5734%
Dr. Heinzelmann compared with the Michigan median for colorectal surgeons, 2024
- Dr. Heinzelmann
- Michigan median
- Medicare services
- 208vs 208Close to median
- Medicare patients
- 214vs 15439% above
- Part D claims
- 583vs 1583.7 times
Medians across 66 colorectal surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Heinzelmann'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. Heinzelmann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Heinzelmann and other colorectal surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Joseph Heinzelmann treated 214 Medicare patients in 2024, average age 72
CMS counts 214 Medicare patients who saw Dr. Heinzelmann in 2024. The largest group is 65 to 74, with 131 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 0.80, where 1.00 is the Medicare average.
Dr. Heinzelmann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Heinzelmann's Medicare patients by sex, 2024
- Women11051%
- Men10449%
Chronic conditions among Dr. Heinzelmann's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis39%
- Chronic kidney disease25%
- Diabetes23%
- Mood disorders21%
- Anxiety20%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Joseph Heinzelmann wrote 583 Medicare Part D claims in 2023
In 2023, Dr. Heinzelmann wrote 583 Medicare Part D claims. They cover 3 drugs, with $18,517 in total drug cost. In 2022, CMS named 276 claims across 2 drugs.
Dr. Heinzelmann's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2762023: 583111%
Drugs named by CMS: 3 in 2023, 2 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark Joseph Heinzelmann received $443 in industry payments from 2017 to 2023
CMS Open Payments shows 31 general payments to Dr. Heinzelmann from 4 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $396.
General payments to Dr. Heinzelmann by program year, 2017 to 2023
Companies that paid Dr. Heinzelmann the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Joseph Heinzelmann'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 | Medicare 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark Joseph Heinzelmann
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. Mark Joseph Heinzelmann's NPI number?
Dr. Mark Joseph Heinzelmann's NPI number is 1013005578. It was assigned on October 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Joseph Heinzelmann?
Dr. Mark Joseph Heinzelmann is a colorectal surgeon in Saginaw, Michigan. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Mark Joseph Heinzelmann practice?
Dr. Heinzelmann practices at 4599 Towne Centre Rd, Saginaw, MI 48604. Dr. Heinzelmann's primary practice is Ascension St Mary's Hospital Health Center at Towne Center in Saginaw, Michigan.
What is Dr. Mark Joseph Heinzelmann's office phone number?
The practice phone on file for Dr. Heinzelmann is (989) 497-3096.
What is Dr. Mark Joseph Heinzelmann's medical license number?
Dr. Heinzelmann holds Michigan license 4301046103.
Does Dr. Mark Joseph Heinzelmann accept Medicare?
Yes. CMS data shows Dr. Heinzelmann billed Medicare for 208 services in 2024.
How many Medicare patients does Dr. Mark Joseph Heinzelmann see?
CMS counts 214 Medicare patients who saw Dr. Heinzelmann in 2024, with an average age of 72.
What services does Dr. Mark Joseph Heinzelmann bill to Medicare?
In 2024, Dr. Heinzelmann's most billed Medicare services were surgery: digestive system (45378), surgery: digestive system (45385) and medicare service (G0105).
What drugs does Dr. Mark Joseph Heinzelmann prescribe most?
In 2023 Medicare Part D data, Dr. Heinzelmann's most prescribed drugs by claims were Peg 3350-Electrolyte, Gavilyte-C and Sutab.
Has Dr. Mark Joseph Heinzelmann received payments from drug or device companies?
CMS Open Payments shows $443 in general payments to Dr. Heinzelmann from 4 companies from 2017 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Mark Joseph Heinzelmann been practicing?
Dr. Heinzelmann's NPI was assigned in 2006.
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