Dr. Clara Marie Grayhack, MD
- Part D claims, 2024
- 31
- Hospital affiliations
- 1
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 3601 W Thirteen Mile Rd, Royal Oak, MI 48073
- Practice phone
- Call (248) 898-5400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Grayhack'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.
Dr. Clara Marie Grayhack is an OB-GYN in Royal Oak, Michigan
Dr. Grayhack practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health.
Dr. Grayhack's NPI, 1881222941, was assigned on April 1, 2020. Dr. Grayhack holds Michigan license 4301510902.
- NPI
- 1881222941NPI Registry (opens in a new tab)
- NPI enumeration date
- April 1, 2020
- NPI status
- Active
- Practice phone
- (248) 898-5400
- 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; and Dmand AI Affiliation Data
Dr. Clara Marie Grayhack practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan
Dr. Grayhack's primary practice is Corewell Health William Beaumont University Hospital, at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073 in Oakland County. The practice phone is (248) 898-5400.
- Corewell Health William Beaumont University Hospital3601 W Thirteen Mile Rd, Royal Oak, MI 48073 · Oakland CountyPhone(248) 898-5400
Source: Dmand AI Affiliation Data
Dr. Clara Marie Grayhack is affiliated with 1 site of care and 3 medical groups
Dr. Grayhack's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. The medical group on file is Medical Education Associates. Dmand AI also links Dr. Grayhack to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clara Marie Grayhack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grayhack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health William Beaumont University Hospital | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Corewell Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Clara Marie Grayhack is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Grayhack's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Grayhack is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Grayhack
Counts of OB-GYNs 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
Dr. Clara Marie Grayhack's patients have a median age of 32
Across all payers, Dmand AI patient panel data puts Dr. Grayhack's median patient age at 32, with 97% women.
Dr. Grayhack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women97%
- Men3%
Source: Dmand AI Patient Panel Data
Dr. Clara Marie Grayhack wrote 31 Medicare Part D claims in 2024
In 2024, Dr. Grayhack wrote 31 Medicare Part D claims for 15 patients. 100% of them were for generic drugs. They cover 2 drugs, with $127 in total drug cost.
Dr. Grayhack's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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 Dr. Clara Marie Grayhack'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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 Dr. Clara Marie Grayhack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Clara Marie Grayhack's NPI number?
Dr. Clara Marie Grayhack's NPI number is 1881222941. It was assigned on April 1, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Clara Marie Grayhack?
Dr. Clara Marie Grayhack is an OB-GYN in Royal Oak, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Clara Marie Grayhack practice?
Dr. Grayhack practices at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073. Dr. Grayhack's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dmand AI also links Dr. Grayhack to 2 medical groups.
What is Dr. Clara Marie Grayhack's office phone number?
The practice phone on file for Dr. Grayhack is (248) 898-5400.
What is Dr. Clara Marie Grayhack's medical license number?
Dr. Grayhack holds Michigan license 4301510902.
Which hospitals is Dr. Clara Marie Grayhack affiliated with?
Dr. Grayhack practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan.
What medical group is Dr. Clara Marie Grayhack part of?
Dr. Grayhack is linked to Medical Education Associates. Dmand AI links Dr. Grayhack to 2 more medical groups.
What drugs does Dr. Clara Marie Grayhack prescribe most?
In 2023 Medicare Part D data, Dr. Grayhack's most prescribed drugs by claims were Oxycodone HCl and Ibuprofen.
How long has Dr. Clara Marie Grayhack been practicing?
Dr. Grayhack graduated from medical school in 2020, 6 years ago.
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