NPPES file of Aug 9, 2026

Joseph Gregory Barker, M.D.

Obstetrics & Gynecology Physician · Winston Salem, NC

Joseph Gregory Barker, M.D. is an obstetrics & gynecology physician with a practice address in Winston Salem, North Carolina, and NPI 1659725075, issued on Apr 21, 2016. Check the license (North Carolina 2020-02541, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659725075
Name
Joseph Gregory Barker
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
2020-02541 NC
Self-reported in NPPES; status is on the state search
Practice location
114 Charlois Blvd, Winston Salem, NC 27103
Phone
(336) 765-5470
Enumerated
Apr 21, 2016
Record last updated
Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(336) 499-5428
Medicare enrollment
Enrolled (PECOS I20200709001319); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 114 Charlois Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lucinda Backus, O.G.N.P.Nurse Practitioner1922298330
  2. Sarah Bare, CNMAdvanced Practice Midwife1669338976
  3. McCall BarneyNurse Practitioner1316825714
  4. Ila Bowers, CNMAdvanced Practice Midwife1700626892
  5. Christina Cepeda-Chyr, PA-CPhysician Assistant1447829619
  6. Maria D'Iorio, MDObstetrics & Gynecology Physician1467071225

Verify Joseph Gregory Barker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 2020-02541    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Carolina license search

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39% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

100 Medicare Part D claims for 40 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Joseph Barker100
  2. Specialty average165

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.

Bills Medicare through one group practice

  1. Novant Health Medical Group, LLCWinston Salem, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Obstetrics & Gynecology Physician providers in North Carolina

There are 1,548 obstetrics & gynecology physician records in North Carolina.

All 1,548 in North Carolina → Every provider in Winston Salem →

Other obstetrics & gynecology physician records in North Carolina

  1. Meaghan Aalto, MDLexington, NC1487940292
  2. Lara Aboulhosn, MDCharlotte, NC1134489396
  3. Tatiana Acosta, M.D., M.P.HRaleigh, NC1891228870
  4. Brandi Adams, MDHuntersville, NC1194015149
  5. Harvey Adams, M.D.Asheboro, NC1114221116
  6. Sharvari Adams, DOGreensboro, NC1407598170
  7. Todd Adams, MD, FACOG, MPHMooresville, NC1477585107
  8. Natasha Adams-Denny, MDCharlotte, NC1861413437
  9. Swati Adawadkar, MDCharlotte, NC1902004583
  10. George Adcock, M.D.Gastonia, NC1447246228

Common questions

What is Joseph Gregory Barker, M.D.'s NPI number?

Joseph Gregory Barker, M.D.'s National Provider Identifier (NPI) is 1659725075, issued on Apr 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Gregory Barker, M.D. located?

The NPPES record lists a practice address at 114 Charlois Blvd, Winston Salem, NC, 27103. Phone: (336) 765-5470. Providers update this record themselves, so call before visiting.

How can I verify Joseph Gregory Barker, M.D.'s license?

NPPES lists North Carolina license number 2020-02541, 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 Joseph Gregory Barker, M.D. prescribe under Medicare Part D?

In 2024, Joseph Gregory Barker, M.D. had 100 Medicare Part D claims for 40 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.