Maxwell Arthur Parrish, C.R.N.P.
Family Nurse Practitioner · Philadelphia, PA
Maxwell Arthur Parrish, C.R.N.P. is a family nurse practitioner with a practice address in Philadelphia, Pennsylvania, and NPI 1528387255, issued on May 20, 2010. Check the license (Pennsylvania SP010754, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maxwell Arthur Parrish
- Credential
- C.R.N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- SP010754 PA
Self-reported in NPPES; status is on the state search - Practice location
- 809 Locust St, Philadelphia, PA 19107
- Phone
- (215) 563-0658
- Enumerated
- May 20, 2010
- Record last updated
- May 20, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150721001423); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,209 in Pennsylvania → Look up another NPI →
Also registered at 809 Locust St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Cylkowski, C.R.N.P.Adult Health Nurse Practitioner1457688624
- Matthew Fellows, M.D.Family Medicine Physician1679894372
- Hilary Rosenstein, MDFamily Medicine Physician1063799351
Verify Maxwell Arthur Parrish in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license SP010754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,259 Medicare Part D claims for 77 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.
Most prescribed
- Biktarvy172 claims
- Tivicay98 claims
- Descovy63 claims
- Dovato58 claims
- Sulfamethoxazole-Trimethoprim54 claims
- Albuterol Sulfate Hfa46 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 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 one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maxwell Arthur Parrish among 7,209 family nurse practitioner records in Pennsylvania
Maxwell Arthur Parrish, C.R.N.P. is one of 7,209 family nurse practitioner records with a practice address in Pennsylvania. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 16% of them.
- NPI issued2010 · 16% of these records are older, 82% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2009 · median 2018 among the 4,232 with a school on file
- Record last updated2010 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
896 family nurse practitioner records list a practice address in Philadelphia
They are 896 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,209 family nurse practitioner records in Pennsylvania.
All 7,209 in Pennsylvania → Every provider in Philadelphia → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Janis Bonat, CRNPPhiladelphia, PA 191071154434702
- Linda Davis-Moon, CRNPPhiladelphia, PA 191071326245598
- Troy Derose, CRNP, RNFAPhiladelphia, PA 191071730211145
- Kay Gentieu, CRNPPhiladelphia, PA 191071326245507
- Morton Guthrie, CRNPPhiladelphia, PA 191071669413209
- Megan McCullough, NP-CPhiladelphia, PA 191071851410138
- Thomas McNulty, CRNPPhiladelphia, PA 191071730103508
- Mary Pollice, CRNPPhiladelphia, PA 191071689669194
Common questions
What is Maxwell Arthur Parrish, C.R.N.P.'s NPI number?
Maxwell Arthur Parrish, C.R.N.P.'s National Provider Identifier (NPI) is 1528387255, issued on May 20, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Maxwell Arthur Parrish, C.R.N.P. located?
The NPPES record lists a practice address at 809 Locust St, Philadelphia, PA, 19107. Phone: (215) 563-0658. Providers update this record themselves, so call before visiting.
How can I verify Maxwell Arthur Parrish, C.R.N.P.'s license?
NPPES lists Pennsylvania license number SP010754, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Maxwell Arthur Parrish, C.R.N.P. prescribe under Medicare Part D?
In 2024, Maxwell Arthur Parrish, C.R.N.P. had 1,259 Medicare Part D claims for 77 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Maxwell Arthur Parrish, C.R.N.P.'s MIPS final score?
The 2023 MIPS final score is 85.5 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.