Marissa L. Baum
Physician Assistant · Montgomery, OH
Marissa L. Baum is a physician assistant with a practice address in Montgomery, Ohio, and NPI 1962820829, issued on Mar 28, 2014. Check the license (Ohio 50.003974, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa L. Baum
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 50.003974 OH
Self-reported in NPPES; status is on the state search - Practice location
- 10500 Montgomery RD, Montgomery, OH 45242
- Phone
- (513) 246-2300
- Enumerated
- Mar 28, 2014
- Record last updated
- Mar 25, 2026
- Fax
- (513) 245-5424
- Medicare enrollment
- Enrolled (PECOS I20140417001524); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 5,325 in Ohio → Look up another NPI →
Also registered at 10500 Montgomery RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Abner, APRNAcute Care Nurse Practitioner1255749081
- Amr Aboelnasr, MDHospitalist Physician1417534876
- Alizabeth AdamsPhysical Therapist1730870445
- Adwoa Addo Asiamah, CRNACertified Registered Nurse Anesthetist1154903607
- Patricia Albano-SeitzCritical Care Medicine Nurse Practitioner1699328294
- Mhd Kutaiba Albuni, MDHospitalist Physician1952089351
Verify Marissa L. Baum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 50.003974Check 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
178 Medicare Part D claims for 96 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 115 claims were for opioids.
Most prescribed
- Oxycodone Hcl86 claims
- Oxycodone-Acetaminophen11 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): 78.8 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: $137.07
1 payment: 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 2 group practices
- Beacon Orthopaedics And Sports Medicine LtdCincinnati, OH
- Trihealth H LLCMontgomery, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa L. Baum among 5,325 physician assistant records in Ohio
Marissa L. Baum is one of 5,325 physician assistant records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 30% of them.
- NPI issued2014 · 30% of these records are older, 67% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 2019 among the 3,621 with a school on file
- Record last updated2026 · 37% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 physician assistant records list a practice address in Montgomery
They are 42 of the 457 NPPES records with a practice address in Montgomery, and 5,325 physician assistant records in Ohio.
All 5,325 in Ohio → Every provider in Montgomery → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Shannon Bartlett, PACincinnati, OH 452421417911140
- Jonathan Beiser, PA-CMontgomery, OH 452421063452266
- Jared Blackmore, PA-CMontgomery, OH 452421649559014
- Sarah Gibble, PAMontgomery, OH 452421821342320
- Kate Harden, PA-CCincinnati, OH 452421104039239
- Stephanie Januszki, PABlue Ash, OH 452421093016040
- Larissa Kahle, P.A.-CCincinnati, OH 452421386647261
- Joseph Konys, PA-CMontgomery, OH 452421871554030
Common questions
What is Marissa L. Baum's NPI number?
Marissa L. Baum's National Provider Identifier (NPI) is 1962820829, issued on Mar 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marissa L. Baum located?
The NPPES record lists a practice address at 10500 Montgomery RD, Montgomery, OH, 45242. Phone: (513) 246-2300. Providers update this record themselves, so call before visiting.
How can I verify Marissa L. Baum's license?
NPPES lists Ohio license number 50.003974, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa L. Baum prescribe under Medicare Part D?
In 2024, Marissa L. Baum had 178 Medicare Part D claims for 96 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Marissa L. Baum's MIPS final score?
The 2023 MIPS final score is 78.8 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.