Erin Margaret Murphy Santos, PA
Physician Assistant · South Portland, ME
Erin Margaret Murphy Santos, PA is a physician assistant with a practice address in South Portland, Maine, and NPI 1639129547, issued on May 11, 2006. Check the license (Maine PA1774, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Margaret Murphy Santos
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA1774 ME
Self-reported in NPPES; status is on the state search - Practice location
- 100 Brickhill Ave, South Portland, ME 04106
- Phone
- (207) 773-1728
- Enumerated
- May 11, 2006
- Record last updated
- Apr 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (207) 773-8153
- Medicare enrollment
- Enrolled (PECOS I20180410000317); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 979 in Maine → Look up another NPI →
Also registered at 100 Brickhill Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erin Margaret Murphy Santos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license PA1774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average physician assistant in 2024
905 Medicare Part D claims for 347 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Tamsulosin Hcl239 claims
- Finasteride101 claims
- Sulfamethoxazole-Trimethoprim69 claims
- Myrbetriq53 claims
- Solifenacin Succinate52 claims
- Ciprofloxacin Hcl34 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 MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthSouth Portland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Margaret Murphy Santos among 979 physician assistant records in Maine
Erin Margaret Murphy Santos, PA is one of 979 physician assistant records with a practice address in Maine. 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 73% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2005 · median 2017 among the 648 with a school on file
- Record last updated2018 · 47% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 physician assistant records list a practice address in South Portland
They are 30 of the 1,143 NPPES records with a practice address in South Portland, and 979 physician assistant records in Maine.
All 979 in Maine → Every provider in South Portland → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Courtney Anson, P.A.South Portland, ME 041061518118264
- Andrew FarrellSouth Portland, ME 041061720498819
- Samuel Gagnon, PA-CSouth Portland, ME 041061407121932
- Donna Hempel, PA-CSouth Portland, ME 041061417118274
- Kathleen Lee, P.A.South Portland, ME 041061427344795
- Laurie Martens, PACSouth Portland, ME 041061215906904
- Christopher Nilsson, PA-CSouth Portland, ME 041061255703955
- Laura Pittenger, P.A.-C, MPHSouth Portland, ME 041061265711279
Common questions
What is Erin Margaret Murphy Santos, PA's NPI number?
Erin Margaret Murphy Santos, PA's National Provider Identifier (NPI) is 1639129547, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erin Margaret Murphy Santos, PA located?
The NPPES record lists a practice address at 100 Brickhill Ave, South Portland, ME, 04106. Phone: (207) 773-1728. Providers update this record themselves, so call before visiting.
How can I verify Erin Margaret Murphy Santos, PA's license?
NPPES lists Maine license number PA1774, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Margaret Murphy Santos, PA prescribe under Medicare Part D?
In 2024, Erin Margaret Murphy Santos, PA had 905 Medicare Part D claims for 347 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Erin Margaret Murphy Santos, PA's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. 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.