NPPES file of Aug 9, 2026

Caitlin Ann Bosse, PA-C

Physician Assistant · Portland, ME

Caitlin Ann Bosse, PA-C is a physician assistant with a practice address in Portland, Maine, and NPI 1083343040, issued on Jun 6, 2022. Check the license (Maine PA2323, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083343040
Name
Caitlin Ann Bosse
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA2323 ME
Self-reported in NPPES; status is on the state search
Practice location
22 Bramhall St, Portland, ME 04102
Phone
(207) 662-6209
Enumerated
Jun 6, 2022
Record last updated
Jun 6, 2022
Medicare enrollment
Enrolled (PECOS I20220830000703); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 22 Bramhall St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Abbatiello, NP-CFamily Nurse Practitioner1871811737
  2. Ruslan Abdukalikov, DOAnesthesiology Physician1831694793
  3. Tod Abrahams, M.D.Diagnostic Radiology Physician1538231642
  4. Joshua Abrams, PA-CSurgical Physician Assistant1932832128
  5. Christopher Abruzzese, D.OAnesthesiology Physician1558789305
  6. Haley Acker, PA-CPhysician Assistant1972167377

Verify Caitlin Ann Bosse in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license PA2323
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maine license search

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77% fewer Medicare Part D claims than the average physician assistant in 2024

192 Medicare Part D claims for 78 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Caitlin Bosse192
  2. Specialty average830

Most prescribed

  1. Prednisone16 claims
  2. Doxycycline Hyclate11 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.

  1. Qualityout of 100 · 30% of the final score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. MainehealthNorway, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Caitlin Ann Bosse among 979 physician assistant records in Maine

Caitlin Ann Bosse, PA-C 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 2022, is newer than 77% of them.

  • NPI issued2022 · 77% of these records are older, 17% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2022 · median 2017 among the 648 with a school on file
  • Record last updated2022 · 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.

The 8 physician assistant records with the nearest ZIP codes

  1. Amy Barraclough, PA-CPortland, ME 041021770533713
  2. Anne Barter, PA-CPortland, ME 041021245280981
  3. Meredith Beauregard, PAPortland, ME 041021013967918
  4. Steven Blessington, PA, MHPPortland, ME 041021841259900
  5. Blue Butterfield, PAPortland, ME 041021487601878
  6. Robert Klotz, PAPortland, ME 041021467447847
  7. Tina Merrill, PA-CPortland, ME 041021639127699
  8. Pierre Morneault, PA-CPortland, ME 041021326098468

Common questions

What is Caitlin Ann Bosse, PA-C's NPI number?

Caitlin Ann Bosse, PA-C's National Provider Identifier (NPI) is 1083343040, issued on Jun 6, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Caitlin Ann Bosse, PA-C located?

The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-6209. Providers update this record themselves, so call before visiting.

How can I verify Caitlin Ann Bosse, PA-C's license?

NPPES lists Maine license number PA2323, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Caitlin Ann Bosse, PA-C prescribe under Medicare Part D?

In 2024, Caitlin Ann Bosse, PA-C had 192 Medicare Part D claims for 78 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Caitlin Ann Bosse, PA-C'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.