Mark Walter Thiemann, PA-C
- Medicare patients, 2024
- 325
- Part D claims, 2024
- 291
- Hospital affiliations
- 2
- Industry payments
- $150
- Medical groups
- 2
- Practice address
- 3301 Mercy Health Blvd, Cincinnati, OH 45211
- Practice phone
- Call (888) 696-3541
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Health Physicians Cincinnati Specialty Care
Cincinnati, Ohio
Find Mark Thiemann'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.
Mark Walter Thiemann is a surgical physician assistant in Cincinnati, Ohio
Mark Thiemann practices at Mercy Health Physicians Cincinnati Specialty Care in Cincinnati, Ohio.
Mark Thiemann's NPI, 1386634046, was assigned on October 25, 2005. Mark Thiemann holds Ohio license 50-00-0882.
- NPI
- 1386634046NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557456456
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (888) 696-3541
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Walter Thiemann practices at Mercy Health Physicians Cincinnati Specialty Care in Cincinnati, Ohio
Mark Thiemann's primary practice is Mercy Health Physicians Cincinnati Specialty Care, at 3301 Mercy Health Blvd, Cincinnati, OH 45211 in Hamilton County. The practice phone is (888) 696-3541.
- Mercy Health Physicians Cincinnati Specialty Care3301 Mercy Health Blvd, Cincinnati, OH 45211 · Hamilton CountyPhone(888) 696-3541
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark Walter Thiemann is affiliated with 5 sites of care and 2 medical groups
Mark Thiemann's primary practice is Mercy Health Physicians Cincinnati Specialty Care in Cincinnati, Ohio. Mark Thiemann is also affiliated with Mercy Health - West Hospital. The medical group on file is Mercy Health Physicians. Dmand AI also links Mark Thiemann to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark Walter Thiemann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Thiemann practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Health Physicians Cincinnati Specialty Care | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Walter Thiemann is one of 347 surgical physician assistants in Ohio
Surgical is Mark Thiemann's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Mark Thiemann is licensed in Ohio.
Specialties and state licenses
- Surgical physician assistant, OhioPrimary
Surgical physician assistants near Mark Thiemann
Counts of surgical physician assistants 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
Mark Walter Thiemann treated 325 Medicare patients in 2024, average age 74
CMS counts 325 Medicare patients who saw Mark Thiemann in 2024. The largest group is 65 to 74, with 175 patients. 75% of them have arthritis, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Thiemann's median patient age at 69, with 68% women.
Mark Thiemann's Medicare patients by age, 2024
Mark Thiemann's Medicare patients by sex, 2024
- Women19460%
- Men13140%
Chronic conditions among Mark Thiemann's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure74%
- Mood disorders30%
- Diabetes29%
- Anxiety27%
- Depression26%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Mark Thiemann'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
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Walter Thiemann wrote 291 Medicare Part D claims in 2024
In 2024, Mark Thiemann wrote 291 Medicare Part D claims for 161 patients. 100% of them were for generic drugs.
Mark Thiemann's Part D claims by kind of drug, 2024
- Generic290 claims100%
- Brand-name and other1 claims0%
Drug classes CMS tracks in Mark Thiemann's Part D claims, 2024
- Opioids36%105 of 291 claims
- Antibiotics6%17 of 291 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mark Walter Thiemann takes part in Medicare
Mark Thiemann 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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Mark Walter Thiemann received $150 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mark Thiemann from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Zimmer Biomet Holdings, Inc. paid the most, $150.
Companies that paid Mark Thiemann the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mark Walter Thiemann'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 DataDmand AI Affiliation Data |
| 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 (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) |
| 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 Mark Walter Thiemann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Walter Thiemann's NPI number?
Mark Walter Thiemann's NPI number is 1386634046. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What does Mark Walter Thiemann specialize in?
Mark Walter Thiemann is a surgical physician assistant in Cincinnati, Ohio. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Mark Walter Thiemann practice?
Mark Thiemann practices at 3301 Mercy Health Blvd, Cincinnati, OH 45211. Mark Thiemann's primary practice is Mercy Health Physicians Cincinnati Specialty Care in Cincinnati, Ohio. Dmand AI also links Mark Thiemann to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Mark Walter Thiemann's office phone number?
The practice phone on file for Mark Thiemann is (888) 696-3541.
What is Mark Walter Thiemann's medical license number?
Mark Thiemann holds Ohio license 50-00-0882.
Which hospitals is Mark Walter Thiemann affiliated with?
Mark Thiemann is affiliated with Mercy Health - West Hospital. Dmand AI links Mark Thiemann to 1 more hospital.
What medical group is Mark Walter Thiemann part of?
Mark Thiemann is linked to Mercy Health Physicians. Dmand AI links Mark Thiemann to 1 more medical group.
Does Mark Walter Thiemann accept Medicare?
Yes. CMS lists Mark Thiemann as accepting Medicare assignment.
How many Medicare patients does Mark Walter Thiemann see?
CMS counts 325 Medicare patients who saw Mark Thiemann in 2024, with an average age of 74.
Has Mark Walter Thiemann received payments from drug or device companies?
CMS Open Payments shows $150 in general payments to Mark Thiemann from 1 company from 2025 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Mark Walter Thiemann been practicing?
Mark Thiemann graduated from medical school in 1993, 33 years ago.
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