Mary Kathryn Brewer Key
Family Medicine Physician · Yadkinville, NC
Mary Kathryn Brewer Key is a family medicine physician with a practice address in Yadkinville, North Carolina, and NPI 1801324686, issued on May 24, 2017. Check the license (North Carolina 227729, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mary Kathryn Brewer Key
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 227729 NC
Self-reported in NPPES; status is on the state search - Practice location
- 305 E Lee Ave, Yadkinville, NC 27055
- Phone
- (336) 679-2661
- Enumerated
- May 24, 2017
- Record last updated
- Apr 26, 2023
- Fax
- (336) 679-7056
- Medicare enrollment
- Enrolled (PECOS I20200824001498); accepts Medicare assignment
- Medical or professional school
- Campbell Univ School Of Osteopathic Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,953 in North Carolina → Look up another NPI →
Also registered at 305 E Lee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tabitha Cousart-Hutchens, NURSE PRACTITIONERNurse Practitioner1982839197
- Megan Diffenbaugh, PHARMD, BCACPPharmacist1467740332
- Teresa Diggs, FNP-CNurse Practitioner1194907568
- Lauren Heller, FNP-BCNurse Practitioner1336773217
- Caitlin Hurdle Darr, FNP-CNurse Practitioner1578991576
- Gunnar KeyFamily Medicine Physician1568968881
Verify Mary Kathryn Brewer Key in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 227729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% more Medicare Part D claims than the average family medicine physician in 2024
6,894 Medicare Part D claims for 542 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 107 claims were for opioids.
Most prescribed
- Atorvastatin Calcium313 claims
- Amlodipine Besylate236 claims
- Lisinopril234 claims
- Gabapentin223 claims
- Omeprazole197 claims
- Buspirone Hcl193 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.
Industry payments in 2024: $99.00
6 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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 one group practice
- Forsyth Memorial Hospital IncWinston Salem, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Kathryn Brewer Key among 4,953 family medicine physician records in North Carolina
Mary Kathryn Brewer Key is one of 4,953 family medicine physician records with a practice address in North Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 80% of them.
- NPI issued2017 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2006 among the 3,104 with a school on file
- Record last updated2023 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family medicine physician records list a practice address in Yadkinville
They are 8 of the 143 NPPES records with a practice address in Yadkinville, and 4,953 family medicine physician records in North Carolina.
All 4,953 in North Carolina → Every provider in Yadkinville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Stephen Bissette, MDYadkinville, NC 270551073592903
- Gunnar KeyYadkinville, NC 270551568968881
- James McGrath, MDYadkinville, NC 270551427010834
- Faiza Rais-Reynolds, MDYadkinville, NC 270551982732558
- Joan Williams, MDYadkinville, NC 270551194786723
- John Williams, MDYadkinville, NC 270551073574604
- Susan Yuson, MDYadkinville, NC 270551619938883
- Harry Coletta, MDWalnut Cove, NC 270521639175219
Common questions
What is Mary Kathryn Brewer Key's NPI number?
Mary Kathryn Brewer Key's National Provider Identifier (NPI) is 1801324686, issued on May 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathryn Brewer Key located?
The NPPES record lists a practice address at 305 E Lee Ave, Yadkinville, NC, 27055. Phone: (336) 679-2661. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathryn Brewer Key's license?
NPPES lists North Carolina license number 227729, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Kathryn Brewer Key prescribe under Medicare Part D?
In 2024, Mary Kathryn Brewer Key had 6,894 Medicare Part D claims for 542 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.