David P. Terwilliger, PA
Physician Assistant · Portland, ME
David P. Terwilliger, PA is a physician assistant with a practice address in Portland, Maine, and NPI 1952343162, issued on Jun 12, 2006. Check the license (Maine PA-581, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David P. Terwilliger
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA-581 ME
Self-reported in NPPES; status is on the state search - Practice location
- 144 State St, Portland, ME 04101
- Phone
- (207) 879-3000
- Enumerated
- Jun 12, 2006
- Record last updated
- Jul 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040901000330); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 979 in Maine → Look up another NPI →
Also registered at 144 State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sandra Aubelangella, CNSPsychiatric/Mental Health Nurse Practitioner1306883129
- Mary Louise Bates, M.D.Anesthesiology Physician1427035666
- Normand Begin, CRNACertified Registered Nurse Anesthetist1235186412
- Denise BenedictPhysician Office Based Coding Specialist1487907978
Verify David P. Terwilliger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license PA-581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average physician assistant in 2024
21 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David P. Terwilliger among 979 physician assistant records in Maine
David P. Terwilliger, 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
- Graduated1998 · median 2017 among the 648 with a school on file
- Record last updated2013 · 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).
243 physician assistant records list a practice address in Portland
They are 243 of the 6,022 NPPES records with a practice address in Portland, and 979 physician assistant records in Maine.
All 979 in Maine → Every provider in Portland → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Victoria Davis, PA-CPortland, ME 041011609817691
- Ellen Jankowski, PA-CPortland, ME 041011417963109
- Lorraine Laliberte, PACPortland, ME 041011982673638
- Jennifer Landry, PA-CPortland, ME 041011790740835
- Michelle Lavigne, PAPortland, ME 041011720025703
- Elizabeth Levesque, PA-CPortland, ME 041011982641833
- Stephen Parenteau, PA-CPortland, ME 041011558308403
- Elizabeth Peterson, PA-CPortland, ME 041011952450231
Common questions
What is David P. Terwilliger, PA's NPI number?
David P. Terwilliger, PA's National Provider Identifier (NPI) is 1952343162, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David P. Terwilliger, PA located?
The NPPES record lists a practice address at 144 State St, Portland, ME, 04101. Phone: (207) 879-3000. Providers update this record themselves, so call before visiting.
How can I verify David P. Terwilliger, PA's license?
NPPES lists Maine license number PA-581, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does David P. Terwilliger, PA prescribe under Medicare Part D?
In 2024, David P. Terwilliger, PA had 21 Medicare Part D claims; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is David P. Terwilliger, 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.