Marissa Dawn Walker, FNP-C
- Part D claims, 2024
- 74
- Affiliated sites
- 2
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 41850 W 11 Mile Rd, Novi, MI 48375
- Practice phone
- Call (248) 860-4634
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Theoria Medical
Novi, Michigan
Find Marissa Walker'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 Dawn Walker is a family nurse practitioner in Novi, Michigan
Marissa Walker practices at Theoria Medical in Novi, Michigan.
Marissa Walker's NPI, 1487261392, was assigned on September 24, 2020. Marissa Walker holds Michigan license 4704304415.
- NPI
- 1487261392NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860804903
- NPI enumeration date
- September 24, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 860-4634
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Dawn Walker practices at Theoria Medical in Novi, Michigan
Marissa Walker's primary practice is Theoria Medical, at 41850 W 11 Mile Rd, Novi, MI 48375 in Oakland County. The practice phone is (248) 860-4634.
- Theoria Medical41850 W 11 Mile Rd, Novi, MI 48375 · Oakland CountyPhone(248) 860-4634
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marissa Dawn Walker is affiliated with 3 sites of care and 3 medical groups
Marissa Walker's primary practice is Theoria Medical in Novi, Michigan. The medical group on file is Theoria Medical. Dmand AI also links Marissa Walker to 2 more group practices and clinics and 2 medical groups, 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 Dawn Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Walker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Theoria Medical | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa Dawn Walker is one of 4,420 family nurse practitioners in Michigan
Family is Marissa Walker's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Marissa Walker is licensed in Michigan.
Specialties and state licenses
- Family nurse practitioner, MichiganPrimary
Family nurse practitioners near Marissa Walker
Counts of family nurse practitioners 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 Dawn Walker's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Marissa Walker's median patient age at 67, with 43% women.
Marissa Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Marissa Dawn Walker wrote 74 Medicare Part D claims in 2024
In 2024, Marissa Walker wrote 74 Medicare Part D claims. 82% of them were for generic drugs.
Marissa Walker's Part D claims by kind of drug, 2024
- Generic61 claims82%
- Brand-name13 claims18%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Marissa Dawn Walker takes part in Medicare
Marissa Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Marissa Dawn Walker'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 Data |
| 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) |
| 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 Dawn Walker
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 Dawn Walker's NPI number?
Marissa Dawn Walker's NPI number is 1487261392. It was assigned on September 24, 2020, and it is active in the NPI Registry.
What does Marissa Dawn Walker specialize in?
Marissa Dawn Walker is a family nurse practitioner in Novi, Michigan. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Marissa Dawn Walker practice?
Marissa Walker practices at 41850 W 11 Mile Rd, Novi, MI 48375. Marissa Walker's primary practice is Theoria Medical in Novi, Michigan. Dmand AI also links Marissa Walker to 2 group practices and clinics and 2 medical groups.
What is Marissa Dawn Walker's office phone number?
The practice phone on file for Marissa Walker is (248) 860-4634.
What is Marissa Dawn Walker's medical license number?
Marissa Walker holds Michigan license 4704304415.
What medical group is Marissa Dawn Walker part of?
Marissa Walker is linked to Theoria Medical. Dmand AI links Marissa Walker to 2 more medical groups.
Does Marissa Dawn Walker accept Medicare?
Yes. CMS lists Marissa Walker as accepting Medicare assignment.
How long has Marissa Dawn Walker been practicing?
Marissa Walker graduated from medical school in 2020, 6 years ago.
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