Gwen M. Grimsby, M.D.
Urology Physician · Phoenix, AZ
Gwen M. Grimsby, M.D. is a urology physician with a practice address in Phoenix, Arizona, and NPI 1740448703, issued on May 27, 2008. Check the license (Arizona 42236, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gwen M. Grimsby
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 42236 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5779 E Mayo Blvd, Phoenix, AZ 85054
- Phone
- (480) 301-8000
- Enumerated
- May 27, 2008
- Record last updated
- Feb 6, 2025
- Medicaid ID
- 450344 AZ
- Medicare enrollment
- Enrolled (PECOS I20090911000036); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2008
- Entity
- Type 1 · individual
8 nearest urology physician records → All 277 in Arizona → Look up another NPI →
Also registered at 5779 E Mayo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Adamczyk, MDOrthopaedic Surgery Physician1639898620
- Paul Andrews, M.D.Urology Physician1710962345
- Heidi Apsey, N.P.Nurse Practitioner1437344793
- Howard Asaki, P.A.-C.Physician Assistant1801878228
- Stacie Attig, AGPCNPNurse Practitioner1902315435
- Stephen Bansberg, M.D.Otolaryngology Physician1891770426
Verify Gwen M. Grimsby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 42236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average urology physician in 2024
86 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Nitrofurantoin28 claims
- Myrbetriq25 claims
- Oxybutynin Chloride Er19 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: $32.03
1 payment: food and beverage; the largest payer was Teleflex LLC. The 9,340 providers of this specialty with any payment received $3,800.04 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.
One hospital affiliation
- Phoenix Children's HospitalPhoenix, AZ · Childrens
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Gwen M. Grimsby among 277 urology physician records in Arizona
Gwen M. Grimsby, M.D. is one of 277 urology physician records with a practice address in Arizona. 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 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2008 · median 2003 among the 192 with a school on file
- Record last updated2025 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Arizona
There are 277 urology physician records in Arizona.
All 277 in Arizona → Every provider in Phoenix → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Andrew Amenyogbe, MDPhoenix, AZ 850541891674198
- Paul Andrews, M.D.Phoenix, AZ 850541710962345
- Jack Andrews, M.D.Phoenix, AZ 850541396190336
- Premal Desai, M.D.Phoenix, AZ 850541255371662
- Victoria Edmonds, MDPhoenix, AZ 850541235705344
- Murray Feldstein, M.D.Phoenix, AZ 850541669457297
- Robert Ferrigni, M.D.Phoenix, AZ 850541134104748
- Mitchell Humphreys, M.D.Phoenix, AZ 850541144208430
Common questions
What is Gwen M. Grimsby, M.D.'s NPI number?
Gwen M. Grimsby, M.D.'s National Provider Identifier (NPI) is 1740448703, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gwen M. Grimsby, M.D. located?
The NPPES record lists a practice address at 5779 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Gwen M. Grimsby, M.D.'s license?
NPPES lists Arizona license number 42236, 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 Gwen M. Grimsby, M.D. prescribe under Medicare Part D?
In 2024, Gwen M. Grimsby, M.D. had 86 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.