Dr. Mark A. Dittenbir, MD
- Medicare services, 2024
- 79
- Medicare patients, 2026
- 57
- Part D claims, 2026
- 25
- Hospital affiliations
- 4
- Industry payments
- $220
- Practice address
- 1234 Napier Avenue, Saint Joseph, MI 49085
- Practice phone
- Call (269) 983-8300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Dittenbir'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. Mark A. Dittenbir is a general surgeon in Saint Joseph, Michigan
Dr. Dittenbir practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health.
Dr. Dittenbir's NPI, 1942249727, was assigned on June 6, 2006. Dr. Dittenbir graduated from Michigan State University College of Human Medicine in 1984. Dr. Dittenbir holds Michigan license 4301048692.
- NPI
- 1942249727NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749192235
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (269) 983-8300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Dittenbir practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan
Dr. Dittenbir's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital, at 1234 Napier Avenue, Saint Joseph, MI 49085 in Berrien County. The practice phone is (269) 983-8300.
- Corewell Health Lakeland Hospitals - Saint Joseph Hospital1234 Napier Avenue, Saint Joseph, MI 49085 · Berrien CountyPhone(269) 983-8300
Source: Dmand AI Affiliation Data
Dr. Mark A. Dittenbir is affiliated with 4 sites of care and 8 medical groups
Dr. Dittenbir's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. Dr. Dittenbir is also affiliated with Bronson Methodist Hospital. The medical group on file is Corewell Health Medical Group South. Dmand AI also links Dr. Dittenbir to 2 more hospitals and 7 medical groups, 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. Mark A. Dittenbir's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dittenbir practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Lakeland Hospitals - Saint Joseph Hospital | Available with a free account |
| +3 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Mark A. Dittenbir is one of 1,095 general surgeons in Michigan
Surgery is Dr. Dittenbir's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Dittenbir is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Dittenbir
Counts of general 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 A. Dittenbir billed Medicare for 79 services in 2024
CMS data shows 79 Medicare services from Dr. Dittenbir across 2 procedure codes in 2024, for 57 Medicare patients. Medicare paid $5,868 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Dittenbir's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 7925%
Dr. Dittenbir compared with the Michigan median for general surgeons, 2024
- Dr. Dittenbir
- Michigan median
- Medicare services
- 79vs 12637% below
- Medicare patients
- 57vs 10747% below
- Part D claims
- 14vs 3053% below
Medians across 1,046 general surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Dittenbir'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dittenbir and other general surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Dittenbir treated 57 Medicare patients in 2026, average age 75
CMS counts 57 Medicare patients who saw Dr. Dittenbir in 2026. The largest group is 65 to 74, with 29 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dittenbir's median patient age at 62, with 53% women.
Dr. Dittenbir's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Dittenbir's Medicare patients by sex, 2026
- Women2544%
- Men3256%
Chronic conditions among Dr. Dittenbir's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Anxiety53%
- Mood disorders40%
- Ischemic heart disease39%
- Depression35%
- COPD33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dittenbir's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Mark A. Dittenbir wrote 25 Medicare Part D claims in 2026
In 2026, Dr. Dittenbir wrote 25 Medicare Part D claims for 11 patients. 88% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $276 in total drug cost.
Dr. Dittenbir's Part D claims by kind of drug, 2026
- Generic22 claims88%
- Brand-name and other3 claims12%
Dr. Dittenbir's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Mark A. Dittenbir takes part in Medicare
Dr. Dittenbir accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark A. Dittenbir received $220 in industry payments from 2016 to 2017
CMS Open Payments shows 10 general payments to Dr. Dittenbir from 7 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $84.
General payments to Dr. Dittenbir by program year, 2016 to 2017
Companies that paid Dr. Dittenbir the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark A. Dittenbir graduated from Michigan State University College of Human Medicine
Dr. Dittenbir graduated from Michigan State University College of Human Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Dittenbir'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)Doctors and Clinicians Utilization Data (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. Mark A. Dittenbir
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 A. Dittenbir's NPI number?
Dr. Mark A. Dittenbir's NPI number is 1942249727. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Dittenbir?
Dr. Mark A. Dittenbir is a general surgeon in Saint Joseph, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mark A. Dittenbir practice?
Dr. Dittenbir practices at 1234 Napier Avenue, Saint Joseph, MI 49085. Dr. Dittenbir's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. Dmand AI also links Dr. Dittenbir to 2 hospitals and 7 medical groups, and a free account names each one.
What is Dr. Mark A. Dittenbir's office phone number?
The practice phone on file for Dr. Dittenbir is (269) 983-8300. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Mark A. Dittenbir's email address?
Dmand AI checks professional and personal email addresses for Dr. Dittenbir through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Mark A. Dittenbir's medical license number?
Dr. Dittenbir holds Michigan license 4301048692.
Which hospitals is Dr. Mark A. Dittenbir affiliated with?
Dr. Dittenbir practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan. Dr. Dittenbir is also affiliated with Bronson Methodist Hospital. Dmand AI links Dr. Dittenbir to 2 more hospitals, named with a free account.
What medical group is Dr. Mark A. Dittenbir part of?
Dr. Dittenbir is linked to Corewell Health Medical Group South. Dmand AI links Dr. Dittenbir to 7 more medical groups, named with a free account.
Who does Dr. Mark A. Dittenbir practice with?
Dmand AI links 393 HCPs to Dr. Dittenbir's primary medical group, 17 of them general surgeons. A free account lists them, with verified contacts.
Does Dr. Mark A. Dittenbir accept Medicare?
Yes. CMS data shows Dr. Dittenbir billed Medicare for 79 services in 2024, and Dr. Dittenbir accepts Medicare assignment.
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How many Medicare patients does Dr. Mark A. Dittenbir see?
CMS counts 57 Medicare patients who saw Dr. Dittenbir in 2026, with an average age of 75.
What services does Dr. Mark A. Dittenbir bill to Medicare?
In 2024, Dr. Dittenbir's most billed Medicare services were hospital inpatient care (99232) and hospital inpatient care (99222).
Where did Dr. Mark A. Dittenbir go to medical school?
Dr. Dittenbir graduated from Michigan State University College of Human Medicine in 1984.
What drugs does Dr. Mark A. Dittenbir prescribe most?
In 2016 Medicare Part D data, Dr. Dittenbir's most prescribed drugs by claims were Sucralfate.
Has Dr. Mark A. Dittenbir received payments from drug or device companies?
CMS Open Payments shows $220 in general payments to Dr. Dittenbir from 7 companies from 2016 to 2017. The largest total came from Davol Inc.
How long has Dr. Mark A. Dittenbir been practicing?
Dr. Dittenbir graduated from medical school in 1984, 42 years ago.
What EHR does Dr. Mark A. Dittenbir's practice use?
Dmand AI tracks the EHR system at Corewell Health Lakeland Hospitals - Saint Joseph Hospital and at 3 more sites and 7 medical groups. The vendor and product are available with a free Dmand AI account.
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