Gertrude Massie, PA
Physician Assistant · Phoenix, AZ
Gertrude Massie, PA is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1063151249, issued on Jun 3, 2022. Check the license (Arizona 9250, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gertrude Massie
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 9250 AZ
PA61477339 WA
Self-reported in NPPES; status is on the state search - Practice location
- 5777 E Mayo Blvd, Phoenix, AZ 85054
- Phone
- (480) 301-8000
- Enumerated
- Jun 3, 2022
- Record last updated
- Aug 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20231102001970); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Also registered at 5777 E Mayo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gertrude Massie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 9250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 78.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Medical Imaging Northwest - Good Samaritan Hospital Imaging AlliancePuyallup, WA
- Tra-Minw P STacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gertrude Massie among 3,666 physician assistant records in Arizona
Gertrude Massie, PA is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 70% of them.
- NPI issued2022 · 70% of these records are older, 23% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2018 among the 2,207 with a school on file
- Record last updated2024 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
923 physician assistant records list a practice address in Phoenix
They are 923 of the 31,399 NPPES records with a practice address in Phoenix, and 3,666 physician assistant records in Arizona.
All 3,666 in Arizona → Every provider in Phoenix → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
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- Rhonda Eiland, P.A.-C.Phoenix, AZ 850541205810496
- Kristen Kalkbrenner, P.A.-C.Phoenix, AZ 850541871576819
- Laura Klusovsky, P.A.-C.Phoenix, AZ 850541679556641
- Heather Lucas, P.A.-C.Phoenix, AZ 850541104809144
- Karin Parrett, P.A. - CPhoenix, AZ 850541093797953
Common questions
What is Gertrude Massie, PA's NPI number?
Gertrude Massie, PA's National Provider Identifier (NPI) is 1063151249, issued on Jun 3, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Gertrude Massie, PA located?
The NPPES record lists a practice address at 5777 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Gertrude Massie, PA's license?
NPPES lists Arizona license number 9250, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
What is Gertrude Massie, PA's MIPS final score?
The 2023 MIPS final score is 78.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.