Marissa Kathleen Gruenbaum, PA-C
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 207
- MIPS score, 2024
- 91
- Affiliated sites
- 1
- Medical groups
- 3
- Practice address
- 3777 Trueman Ct, Hilliard, OH 43026
- Practice phone
- Call (614) 545-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orthopedic One
Hilliard, Ohio
Find Marissa Gruenbaum'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.
Marissa Kathleen Gruenbaum is a physician assistant in Hilliard, Ohio
Marissa Gruenbaum practices at Orthopedic One in Hilliard, Ohio.
Marissa Gruenbaum's NPI, 1811543861, was assigned on August 15, 2019. Marissa Gruenbaum holds Ohio license 50.005867RX.
- NPI
- 1811543861NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355774951
- NPI enumeration date
- August 15, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 545-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Kathleen Gruenbaum practices at Orthopedic One in Hilliard, Ohio
Marissa Gruenbaum's primary practice is Orthopedic One, at 3777 Trueman Ct, Hilliard, OH 43026 in Franklin County. The practice phone is (614) 545-7900.
- Orthopedic One3777 Trueman Ct, Hilliard, OH 43026 · Franklin CountyPhone(614) 545-7900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marissa Kathleen Gruenbaum is affiliated with 2 sites of care and 3 medical groups
Marissa Gruenbaum's primary practice is Orthopedic One in Hilliard, Ohio. The medical group on file is Orthopedic One. Dmand AI also links Marissa Gruenbaum to 2 more medical groups and 1 group practice or clinic, 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 Marissa Kathleen Gruenbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Gruenbaum practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orthopedic One | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa Kathleen Gruenbaum is one of 4,524 physician assistants in Ohio
Physician assistant is Marissa Gruenbaum's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marissa Gruenbaum is licensed in Ohio.
Specialties and state licenses
- Physician assistant, OhioPrimary
Physician assistants near Marissa Gruenbaum
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
Marissa Kathleen Gruenbaum treated 134 Medicare patients in 2024, average age 78
CMS counts 134 Medicare patients who saw Marissa Gruenbaum in 2024. The largest group is 75 to 84, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marissa Gruenbaum's median patient age at 62, with 60% women.
Marissa Gruenbaum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marissa Gruenbaum's Medicare patients by sex, 2024
- Women8866%
- Men4634%
Chronic conditions among Marissa Gruenbaum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Ischemic heart disease47%
- Mood disorders40%
- Depression38%
- Atrial fibrillation35%
- Chronic kidney disease32%
Share of Medicare patients with each condition. A patient can have several.
Marissa Gruenbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marissa Kathleen Gruenbaum wrote 207 Medicare Part D claims in 2024
In 2024, Marissa Gruenbaum wrote 207 Medicare Part D claims for 164 patients. 94% of them were for generic drugs.
Marissa Gruenbaum's Part D claims by kind of drug, 2024
- Generic195 claims94%
- Brand-name and other12 claims6%
Drug classes CMS tracks in Marissa Gruenbaum's Part D claims, 2024
- Opioids6%12 of 207 claims
- Antibiotics48%100 of 207 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
Marissa Kathleen Gruenbaum scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Marissa Gruenbaum for performance year 2024, reported as part of a group. Marissa Gruenbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Marissa Gruenbaum's MIPS scores, performance year 2024
- 91of 100Final score
- 89.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 79of 100Cost
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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Sources for Marissa Kathleen Gruenbaum'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) |
| 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 Marissa Kathleen Gruenbaum
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa Kathleen Gruenbaum's NPI number?
Marissa Kathleen Gruenbaum's NPI number is 1811543861. It was assigned on August 15, 2019, and it is active in the NPI Registry.
What does Marissa Kathleen Gruenbaum specialize in?
Marissa Kathleen Gruenbaum is a physician assistant in Hilliard, Ohio. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marissa Kathleen Gruenbaum practice?
Marissa Gruenbaum practices at 3777 Trueman Ct, Hilliard, OH 43026. Marissa Gruenbaum's primary practice is Orthopedic One in Hilliard, Ohio. Dmand AI also links Marissa Gruenbaum to 2 medical groups and 1 group practice or clinic.
What is Marissa Kathleen Gruenbaum's office phone number?
The practice phone on file for Marissa Gruenbaum is (614) 545-7900.
What is Marissa Kathleen Gruenbaum's medical license number?
Marissa Gruenbaum holds Ohio license 50.005867RX.
What medical group is Marissa Kathleen Gruenbaum part of?
Marissa Gruenbaum is linked to Orthopedic One. Dmand AI links Marissa Gruenbaum to 2 more medical groups.
Does Marissa Kathleen Gruenbaum accept Medicare?
Yes. CMS lists Marissa Gruenbaum as accepting Medicare assignment.
What is Marissa Kathleen Gruenbaum's MIPS score?
Marissa Gruenbaum's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Marissa Kathleen Gruenbaum see?
CMS counts 134 Medicare patients who saw Marissa Gruenbaum in 2024, with an average age of 78.
How long has Marissa Kathleen Gruenbaum been practicing?
Marissa Gruenbaum graduated from medical school in 2018, 8 years ago.
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