Marcus Rene Ortiz Jr., PA-C
- Medicare patients, 2024
- 819
- Part D claims, 2024
- 2,688
- MIPS score, 2024
- 100
- Industry payments
- $1,019
- Affiliated sites
- 1
- Practice address
- 123 Fox Rd, Knoxville, TN 37922
- Practice phone
- Call (865) 690-9467
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Knoxville Dermatology Group PC
Knoxville, Tennessee
Find Marcus Ortiz's professional email, personal email and mobile number
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Marcus Rene Ortiz Jr. is a physician assistant in Knoxville, Tennessee
Marcus Ortiz practices at Knoxville Dermatology Group PC in Knoxville, Tennessee.
Marcus Ortiz's NPI, 1124303334, was assigned on October 19, 2011. Marcus Ortiz graduated from University of California, Davis School of Medicine in 2011. Marcus Ortiz holds Tennessee license PA3923.
- NPI
- 1124303334NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476784844
- NPI enumeration date
- October 19, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 690-9467
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marcus Rene Ortiz Jr. practices at Knoxville Dermatology Group PC in Knoxville, Tennessee
Marcus Ortiz's primary practice is Knoxville Dermatology Group PC, at 123 Fox Rd, Knoxville, TN 37922 in Knox County. The practice phone is (865) 690-9467.
- Knoxville Dermatology Group PC123 Fox Rd, Knoxville, TN 37922 · Knox CountyPhone(865) 690-9467
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marcus Rene Ortiz Jr. is affiliated with 2 sites of care and 1 medical group
Marcus Ortiz's primary practice is Knoxville Dermatology Group PC in Knoxville, Tennessee. The medical group on file is Knoxville Dermatology Group. Dmand AI also links Marcus Ortiz to 1 more group practice or clinic, 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 Marcus Rene Ortiz Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marcus Ortiz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Knoxville Dermatology Group PC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Marcus Rene Ortiz Jr. is one of 2,573 physician assistants in Tennessee
Physician assistant is Marcus Ortiz's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marcus Ortiz is licensed in Tennessee.
Specialties and state licenses
- Physician assistant, TennesseePrimary
Physician assistants near Marcus Ortiz
Counts of 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
Marcus Rene Ortiz Jr. treated 819 Medicare patients in 2024, average age 73
CMS counts 819 Medicare patients who saw Marcus Ortiz in 2024. The largest group is 65 to 74, with 431 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marcus Ortiz's median patient age at 72, with 43% women.
Marcus Ortiz's Medicare patients by age, 2024
Marcus Ortiz's Medicare patients by sex, 2024
- Women32239%
- Men49761%
Chronic conditions among Marcus Ortiz's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis42%
- Diabetes29%
- Ischemic heart disease27%
- Chronic kidney disease25%
- Anxiety22%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Marcus Ortiz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marcus Rene Ortiz Jr. wrote 2,688 Medicare Part D claims in 2024
In 2024, Marcus Ortiz wrote 2,688 Medicare Part D claims for 886 patients. 93% of them were for generic drugs.
Marcus Ortiz's Part D claims by kind of drug, 2024
- Generic2,491 claims93%
- Brand-name197 claims7%
Drug classes CMS tracks in Marcus Ortiz's Part D claims, 2024
- Antibiotics7%175 of 2,688 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
Marcus Rene Ortiz Jr. scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Marcus Ortiz for performance year 2024, reported as part of a group. Marcus Ortiz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Marcus Ortiz's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Marcus Rene Ortiz Jr. received $1,019 in industry payments in 2025
CMS Open Payments shows 64 general payments to Marcus Ortiz from 14 drug and device companies in 2025. Food and beverage make up the largest share, 93% of the total. Bristol-Myers Squibb Company paid the most, $288.
General payments to Marcus Ortiz by kind, 2025 to 2025
- Food and beverage$95293%
- Education$677%
Companies that paid Marcus Ortiz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Marcus Rene Ortiz Jr. graduated from University of California, Davis School of Medicine
Marcus Ortiz graduated from University of California, Davis School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Marcus Rene Ortiz Jr.'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)Clinician Public Reporting: Overall MIPS Performance (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 Marcus Rene Ortiz Jr.
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What is Marcus Rene Ortiz Jr.'s NPI number?
Marcus Rene Ortiz Jr.'s NPI number is 1124303334. It was assigned on October 19, 2011, and it is active in the NPI Registry.
What does Marcus Rene Ortiz Jr. specialize in?
Marcus Rene Ortiz Jr. is a physician assistant in Knoxville, Tennessee. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marcus Rene Ortiz Jr. practice?
Marcus Ortiz practices at 123 Fox Rd, Knoxville, TN 37922. Marcus Ortiz's primary practice is Knoxville Dermatology Group PC in Knoxville, Tennessee. Dmand AI also links Marcus Ortiz to 1 group practice or clinic.
What is Marcus Rene Ortiz Jr.'s office phone number?
The practice phone on file for Marcus Ortiz is (865) 690-9467.
What is Marcus Rene Ortiz Jr.'s medical license number?
Marcus Ortiz holds Tennessee license PA3923.
What medical group is Marcus Rene Ortiz Jr. part of?
Marcus Ortiz is linked to Knoxville Dermatology Group.
Does Marcus Rene Ortiz Jr. accept Medicare?
Yes. CMS lists Marcus Ortiz as accepting Medicare assignment.
What is Marcus Rene Ortiz Jr.'s MIPS score?
Marcus Ortiz's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Marcus Rene Ortiz Jr. see?
CMS counts 819 Medicare patients who saw Marcus Ortiz in 2024, with an average age of 73.
Where did Marcus Rene Ortiz Jr. go to medical school?
Marcus Ortiz graduated from University of California, Davis School of Medicine in 2011.
Has Marcus Rene Ortiz Jr. received payments from drug or device companies?
CMS Open Payments shows $1,019 in general payments to Marcus Ortiz from 14 companies from 2025 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Marcus Rene Ortiz Jr. been practicing?
Marcus Ortiz graduated from medical school in 2011, 15 years ago.
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