Melissa C. Greshock, CRNA, DNP
- Medicare patients, 2024
- 42
- Hospital affiliations
- 1
- Industry payments
- $16
- Medical group
- 1
- State license
- 1
- Practice address
- 5301 E Huron River Dr, Ann Arbor, MI 48105
- Practice phone
- Call (734) 712-3456
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trinity Health Ann Arbor
Ann Arbor, Michigan
Find Melissa Greshock'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.
Melissa C. Greshock is a nurse anesthetist in Ann Arbor, Michigan
Melissa Greshock practices at Trinity Health Ann Arbor in Ann Arbor, Michigan.
Melissa Greshock's NPI, 1053014696, was assigned on March 23, 2023. Melissa Greshock holds Michigan license 4704307699.
- NPI
- 1053014696NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567993231
- NPI enumeration date
- March 23, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 712-3456
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Melissa C. Greshock practices at Trinity Health Ann Arbor in Ann Arbor, Michigan
Melissa Greshock's primary practice is Trinity Health Ann Arbor, at 5301 E Huron River Dr, Ann Arbor, MI 48105 in Washtenaw County. The practice phone is (734) 712-3456.
- Trinity Health Ann Arbor5301 E Huron River Dr, Ann Arbor, MI 48105 · Washtenaw CountyPhone(734) 712-3456
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Melissa C. Greshock is affiliated with 3 sites of care and 1 medical group
Melissa Greshock's primary practice is Trinity Health Ann Arbor in Ann Arbor, Michigan. Melissa Greshock is also affiliated with Trinity Health Ann Arbor Hospital. The medical group on file is Trinity Health Anesthesiology - Ann Arbor Campus. Dmand AI also links Melissa Greshock to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Melissa C. Greshock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Melissa Greshock practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Ann Arbor | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Melissa C. Greshock is one of 2,599 nurse anesthetists in Michigan
Nurse anesthetist, certified registered is Melissa Greshock's primary specialty in the NPI Registry, under taxonomy code 367500000X. Melissa Greshock is licensed in Michigan.
Specialties and state licenses
- Certified registered nurse anesthetist, MichiganPrimary
Nurse anesthetists near Melissa Greshock
Counts of nurse anesthetists 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
Melissa C. Greshock treated 42 Medicare patients in 2024, average age 74
CMS counts 42 Medicare patients who saw Melissa Greshock in 2024. The largest group is 65 to 74, with 20 patients. 75% of them have high blood pressure, and 67% have high cholesterol. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Melissa Greshock's median patient age at 60, with 64% women.
Melissa Greshock's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Melissa Greshock's Medicare patients by sex, 2024
- Women1945%
- Men2355%
Chronic conditions among Melissa Greshock's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
- Arthritis45%
- Anxiety40%
- Atrial fibrillation38%
- Chronic kidney disease38%
- Diabetes38%
- Ischemic heart disease36%
Share of Medicare patients with each condition. A patient can have several.
Melissa Greshock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Melissa C. Greshock takes part in Medicare
Melissa Greshock 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)
Melissa C. Greshock received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Melissa Greshock from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $16.
Companies that paid Melissa Greshock the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Melissa C. Greshock'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 DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Melissa C. Greshock
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Melissa C. Greshock's NPI number?
Melissa C. Greshock's NPI number is 1053014696. It was assigned on March 23, 2023, and it is active in the NPI Registry.
What does Melissa C. Greshock specialize in?
Melissa C. Greshock is a nurse anesthetist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does Melissa C. Greshock practice?
Melissa Greshock practices at 5301 E Huron River Dr, Ann Arbor, MI 48105. Melissa Greshock's primary practice is Trinity Health Ann Arbor in Ann Arbor, Michigan. Dmand AI also links Melissa Greshock to 1 group practice or clinic.
What is Melissa C. Greshock's office phone number?
The practice phone on file for Melissa Greshock is (734) 712-3456.
What is Melissa C. Greshock's medical license number?
Melissa Greshock holds Michigan license 4704307699.
Which hospitals is Melissa C. Greshock affiliated with?
Melissa Greshock is affiliated with Trinity Health Ann Arbor Hospital.
What medical group is Melissa C. Greshock part of?
Melissa Greshock is linked to Trinity Health Anesthesiology - Ann Arbor Campus.
Does Melissa C. Greshock accept Medicare?
Yes. CMS lists Melissa Greshock as accepting Medicare assignment.
How many Medicare patients does Melissa C. Greshock see?
CMS counts 42 Medicare patients who saw Melissa Greshock in 2024, with an average age of 74.
Has Melissa C. Greshock received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Melissa Greshock from 1 company from 2025 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Melissa C. Greshock been practicing?
Melissa Greshock graduated from medical school in 2024, 2 years ago.
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