Gregory D. Layton, M.D.
Obstetrics & Gynecology Physician · Mesa, AZ
Gregory D. Layton, M.D. is an obstetrics & gynecology physician with a practice address in Mesa, Arizona, and NPI 1104881986, issued on Apr 18, 2006. Check the license (Arizona 23687, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory D. Layton
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 23687 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4824 E Baseline RD Ste 129, Mesa, AZ 85206
- Phone
- (480) 644-1001
- Enumerated
- Apr 18, 2006
- Record last updated
- Jun 26, 2023
- Fax
- (480) 464-8722
- Medicaid ID
- 433821 AZ
- Medicare enrollment
- Enrolled (PECOS I20051027000083); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 1994
- Entity
- Type 1 · individual
Also registered at 4824 E Baseline RD Ste 129
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Russell Beck, M.D.Obstetrics & Gynecology Physician1578672671
- Eericca Bickley, D.O.Obstetrics & Gynecology Physician1023250529
- Thomas Bickley, D.O.Obstetrics & Gynecology Physician1639318991
- Cassidy Ducray, APRNFamily Nurse Practitioner1144929084
- Jacqueline Johnstone, CNMAdvanced Practice Midwife1528149598
- Kaylee Powers, APRNWomen's Health Nurse Practitioner1154110146
Verify Gregory D. Layton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 23687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
11 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $332.39
9 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Women's Care Arizona, LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Obstetrics & Gynecology Physician providers in Arizona
There are 803 obstetrics & gynecology physician records in Arizona.
Other obstetrics & gynecology physician records in Arizona
- Michelle Abbate, MDTucson, AZ1184111940
- Judith Adams, MDGilbert, AZ1457644759
- Julie Adams, DOChandler, AZ1285607333
- Karen Adams, MDPhoenix, AZ1023192333
- Andrew Adamson, DOMesa, AZ1124330220
- Elana Addis, M.DTucson, AZ1730150582
- Eugene Adel, M.D.Mesa, AZ1609301621
- Oluwatoyosi Adeoye, MDPhoenix, AZ1316679921
- Nicole Afuape, M.D.Phoenix, AZ1912391210
- Farshad Agahi, M.D.Phoenix, AZ1386886430
Common questions
What is Gregory D. Layton, M.D.'s NPI number?
Gregory D. Layton, M.D.'s National Provider Identifier (NPI) is 1104881986, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory D. Layton, M.D. located?
The NPPES record lists a practice address at 4824 E Baseline RD Ste 129, Mesa, AZ, 85206. Phone: (480) 644-1001. Providers update this record themselves, so call before visiting.
How can I verify Gregory D. Layton, M.D.'s license?
NPPES lists Arizona license number 23687, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory D. Layton, M.D. prescribe under Medicare Part D?
In 2024, Gregory D. Layton, M.D. had 11 Medicare Part D claims; 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.
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.