Marissa Santiago
Physician Assistant · Tooele, UT
Marissa Santiago is a physician assistant with a practice address in Tooele, Utah, and NPI 1801460274, issued on May 19, 2021. Check the license (Utah 13071784-1206, as entered in NPPES) with the Utah board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Santiago
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 13071784-1206 UT
Self-reported in NPPES; status is on the state search - Practice location
- 2321 N 400 E Ste 300, Tooele, UT 84074
- Phone
- (435) 833-9180
- Enumerated
- May 19, 2021
- Record last updated
- Oct 17, 2025
- Fax
- (435) 359-4505
- Medicare enrollment
- Enrolled (PECOS I20221222002564); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,887 in Utah → Look up another NPI →
Also registered at 2321 N 400 E Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Douglas, D.O.Orthopaedic Surgery Physician1851391908
- Marshall Gibson, PA-CSurgical Physician Assistant1720730666
- Gary Snook, MD, PCOrthopaedic Surgery of the Spine Physician1295755924
Verify Marissa Santiago in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Utah board licenses this profession
Search for license 13071784-1206Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
173 Medicare Part D claims for 69 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Methylprednisolone27 claims
- Tizanidine Hcl20 claims
- Oxycodone-Acetaminophen17 claims
- Meloxicam15 claims
- Hydrocodone-Acetaminophen13 claims
- Prednisone13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $45.84
2 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Tooele Orthopedics And Sports Medicine SpecialistsTooele, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa Santiago among 1,887 physician assistant records in Utah
Marissa Santiago is one of 1,887 physician assistant records with a practice address in Utah. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 72% of them.
- NPI issued2021 · 72% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2022 · median 2018 among the 1,302 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 physician assistant records list a practice address in Tooele
They are 22 of the 541 NPPES records with a practice address in Tooele, and 1,887 physician assistant records in Utah.
All 1,887 in Utah → Every provider in Tooele → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jonathan Atkin, P.A.Tooele, UT 840741861725889
- Jeffrey Ball, PA-CTooele, UT 840741356792360
- Anndrea Boyer, P.A.Tooele, UT 840741689952301
- Andrew Caldwell, PA-CTooele, UT 840741679942916
- Sara Carstensen, PA-CTooele, UT 840741730372947
- Melinda Choate, PA-CTooele, UT 840741336385707
- Cameron Dortch, MPAS, PA-CTooele, UT 840741982914693
- Sarah Gill, PA-CTooele, UT 840741831574532
Common questions
What is Marissa Santiago's NPI number?
Marissa Santiago's National Provider Identifier (NPI) is 1801460274, issued on May 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Santiago located?
The NPPES record lists a practice address at 2321 N 400 E Ste 300, Tooele, UT, 84074. Phone: (435) 833-9180. Providers update this record themselves, so call before visiting.
How can I verify Marissa Santiago's license?
NPPES lists Utah license number 13071784-1206, as entered by the provider. Search the Utah board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Santiago prescribe under Medicare Part D?
In 2024, Marissa Santiago had 173 Medicare Part D claims for 69 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Marissa Santiago's MIPS final score?
The 2023 MIPS final score is 73.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.