Dr. Mark Shell, DO
- Medicare services, 2023
- 32
- Part D claims, 2024
- 303
- Publications
- 4
- Hospital affiliations
- 2
- Industry payments
- $4,206
- Practice address
- 2401 South 31st St, Temple, TX 76504
- Practice phone
- Call (254) 771-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baylor Scott & White Continuing Care Hospital - Temple
Skilled Nursing Facility - Hospital-Based · Temple, Texas
Find Dr. Shell'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 Shell is an internist in Temple, Texas
Dr. Shell practices at Baylor Scott & White Continuing Care Hospital - Temple in Temple, Texas.
Dr. Shell's NPI, 1265097000, was assigned on May 7, 2019. Dr. Shell graduated from Texas College of Osteopathic Medicine in 2019. Dr. Shell holds Texas license T1845.
- NPI
- 1265097000NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668706607
- NPI enumeration date
- May 7, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (254) 771-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Shell practices at Baylor Scott & White Continuing Care Hospital - Temple in Temple, Texas
Dr. Shell's primary practice is Baylor Scott & White Continuing Care Hospital - Temple, at 2401 South 31st St, Temple, TX 76504 in Bell County. The practice phone is (254) 771-8200.
- Baylor Scott & White Continuing Care Hospital - Temple2401 South 31st St, Temple, TX 76504 · Bell CountyPhone(254) 771-8200
Source: Dmand AI Affiliation Data
Dr. Mark Shell is affiliated with 4 sites of care and 1 medical group
Dr. Shell's primary practice is Baylor Scott & White Continuing Care Hospital - Temple in Temple, Texas. Dr. Shell is also affiliated with Baylor Scott & White Medical Center - Temple. The medical group on file is Baylor Scott & White Temple Roney Bone and Joint Institute, Temple. Dmand AI also links Dr. Shell to 1 more hospital 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. Mark Shell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shell practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baylor Scott & White Continuing Care Hospital - Temple | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Shell is one of 8,437 internists in Texas
Internal medicine is Dr. Shell's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shell is board certified in internal medicine by the American Board of Internal Medicine. Dr. Shell is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Clinical focus
Dmand AI lists eyelid inflammation, lower back pain, menopause, neck pain and spine problems, pneumonia, shingles, upper respiratory infection (URI) and UTI among the conditions Dr. Shell treats.
Internists near Dr. Shell
Counts of internists 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 Shell billed Medicare for 32 services in 2023
CMS data shows 32 Medicare services from Dr. Shell across 1 procedure code in 2023, all of them office visits. Medicare paid $1,336 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Shell's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1142023: 3272%
Dr. Shell compared with the Texas median for internists, 2023
- Dr. Shell
- Texas median
- Medicare services
- 32vs 53994% below
- Part D claims
- 164vs 28943% below
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Shell's most billed Medicare procedure codes, 2023
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. Shell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shell and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Shell's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Shell's median patient age at 66, with 52% women.
Dr. Shell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Mark Shell wrote 303 Medicare Part D claims in 2024
In 2024, Dr. Shell wrote 303 Medicare Part D claims for 101 patients. 94% of them were for generic drugs. CMS names the drug for 164 of them, across 7 drugs with 11 or more claims each, at $8,050 in total drug cost. In 2023, CMS named 137 claims across 6 drugs.
Dr. Shell's Part D claims by kind of drug, 2024
- Generic285 claims94%
- Brand-name18 claims6%
Dr. Shell'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. Shell's Part D claims, 2024
- Antibiotics9%26 of 303 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: 1372024: 16420%
Drugs named by CMS: 7 in 2024, 6 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
Dr. Mark Shell ranks in the 85th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Shell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 150 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Shell, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Shell ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 85th percentile150 procedures
- Colonoscopy
- 79th percentile96 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Shell has 4 publications on record
Dmand AI links 4 papers to Dr. Shell, published from 2021 to 2024. 2021 was the busiest year, with 3. Dr. Shell has published most often in ACG Case Rep J. Dr. Shell's most frequent co-authors are Christopher Ryan Naumann, MD, Matthew Tjahja and Christopher Chu, MD.
Dr. Shell's most frequent co-authors
- Christopher Ryan Naumann, MD3 shared papers
- Matthew Tjahja2 shared papers
- Christopher Chu, MD1 shared paper
Recent publications by Dr. Shell
See who Dr. Shell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shell works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Shell received $4,206 in industry payments from 2022 to 2025
CMS Open Payments shows 33 general payments to Dr. Shell from 11 drug and device companies from 2022 to 2025. Travel and lodging make up the largest share, 50% of the total. Boston Scientific Corporation paid the most, $3,639.
General payments to Dr. Shell by program year, 2022 to 2025
General payments to Dr. Shell by kind, 2022 to 2025
- Travel and lodging$2,12350%
- Food and beverage$2,08350%
Companies that paid Dr. Shell the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Shell graduated from Texas College of Osteopathic Medicine
Dr. Shell graduated from Texas College of Osteopathic Medicine in 2019.
- Medical school
- Board certified in internal medicine
- Board certified in 2021 - 2027
Source: Dmand AI Professional Profile Data
Dr. Mark Shell accepts plans from 11 insurance carriers
Dr. Shell is in network with 11 carriers, including United Healthcare, Elevance and Aetna. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +3 more carriersWith a free account
Plan types Dr. Shell accepts, by number of carriers
- HMO7
- PPO7
- EPO3
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Shell'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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Shell
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 Shell's NPI number?
Dr. Mark Shell's NPI number is 1265097000. It was assigned on May 7, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Shell?
Dr. Mark Shell is an internist in Temple, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Shell practice?
Dr. Shell practices at 2401 South 31st St, Temple, TX 76504. Dr. Shell's primary practice is Baylor Scott & White Continuing Care Hospital - Temple in Temple, Texas. Dmand AI also links Dr. Shell to 1 hospital and 1 group practice or clinic.
What is Dr. Mark Shell's office phone number?
The practice phone on file for Dr. Shell is (254) 771-8200.
What is Dr. Mark Shell's medical license number?
Dr. Shell holds Texas license T1845.
Which hospitals is Dr. Mark Shell affiliated with?
Dr. Shell is affiliated with Baylor Scott & White Medical Center - Temple. Dmand AI links Dr. Shell to 1 more hospital.
What medical group is Dr. Mark Shell part of?
Dr. Shell is linked to Baylor Scott & White Temple Roney Bone and Joint Institute, Temple.
Does Dr. Mark Shell accept Medicare?
Yes. CMS data shows Dr. Shell billed Medicare for 32 services in 2023, and Dr. Shell accepts Medicare assignment.
Is Dr. Mark Shell board certified?
Yes. Dr. Shell is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Mark Shell bill to Medicare?
In 2023, Dr. Shell's most billed Medicare services were office visit, established patient (99213).
Show 7 more questionsShow fewer questions
Where did Dr. Mark Shell go to medical school?
Dr. Shell graduated from Texas College of Osteopathic Medicine in 2019.
What drugs does Dr. Mark Shell prescribe most?
In 2024 Medicare Part D data, Dr. Shell's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Promethazine HCl.
Has Dr. Mark Shell received payments from drug or device companies?
CMS Open Payments shows $4,206 in general payments to Dr. Shell from 11 companies from 2022 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Mark Shell been practicing?
Dr. Shell graduated from medical school in 2019, 7 years ago.
Does Dr. Mark Shell do research?
Dmand AI links 4 publications to Dr. Shell, published from 2021 to 2024.
Who does Dr. Mark Shell publish with?
Dr. Shell's most frequent co-authors are Christopher Ryan Naumann, MD (3 shared papers), Matthew Tjahja (2 shared papers) and Christopher Chu, MD (1 shared paper).
What insurance does Dr. Mark Shell accept?
Dr. Shell is in network with 11 carriers, including United Healthcare, Elevance and Aetna. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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