Jacob John Massarelli, PA-C
Physician Assistant · Centralia, WA
Jacob John Massarelli, PA-C is a physician assistant with a practice address in Centralia, Washington, and NPI 1699458927, issued on Aug 11, 2023. Check the license (Washington PA61478292, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jacob John Massarelli
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA61478292 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Cooks Hill RD Ste F, Centralia, WA 98531
- Phone
- (360) 669-0335
- Enumerated
- Aug 11, 2023
- Record last updated
- Oct 19, 2023
- Fax
- (360) 736-2967
- Medicaid ID
- 2261548 WA
- Medicare enrollment
- Enrolled (PECOS I20231213003395); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 1800 Cooks Hill RD Ste F
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blake Busey, D.O.Family Medicine Physician1639466873
- Robert HehnUrology Physician1639114127
- Jenny Johnston Coleman, ARNPNurse Practitioner1407226681
- Pratima ShresthaFamily Nurse Practitioner1508402785
- Behrooz Soleimani, ARNP, DNPFamily Nurse Practitioner1477216653
Verify Jacob John Massarelli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA61478292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average physician assistant in 2024
2,187 Medicare Part D claims for 257 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium153 claims
- Lisinopril146 claims
- Amlodipine Besylate121 claims
- Losartan Potassium86 claims
- Gabapentin57 claims
- Levothyroxine Sodium54 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.
Bills Medicare through one group practice
- Lewis County Community Health ServicesToledo, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacob John Massarelli among 3,718 physician assistant records in Washington
Jacob John Massarelli, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 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 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2023 · median 2017 among the 2,460 with a school on file
- Record last updated2023 · 48% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 physician assistant records list a practice address in Centralia
They are 24 of the 1,049 NPPES records with a practice address in Centralia, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Centralia → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christine Caple, PA-CCentralia, WA 985311336424092
- Mercedes Converse, PA-CCentralia, WA 985311780102970
- Justin Cooper, PA-CCentralia, WA 985311316339385
- Brian Covington, PACentralia, WA 985311326219536
- Joel Deming, PA-CCentralia, WA 985311285814129
- Susan Ghysels, PA-CCentralia, WA 985311548410616
- Mary Goldmann, PA-CCentralia, WA 985311891984613
- Jennifer Green, PACentralia, WA 985311982269395
Common questions
What is Jacob John Massarelli, PA-C's NPI number?
Jacob John Massarelli, PA-C's National Provider Identifier (NPI) is 1699458927, issued on Aug 11, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Jacob John Massarelli, PA-C located?
The NPPES record lists a practice address at 1800 Cooks Hill RD Ste F, Centralia, WA, 98531. Phone: (360) 669-0335. Providers update this record themselves, so call before visiting.
How can I verify Jacob John Massarelli, PA-C's license?
NPPES lists Washington license number PA61478292, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Jacob John Massarelli, PA-C prescribe under Medicare Part D?
In 2024, Jacob John Massarelli, PA-C had 2,187 Medicare Part D claims for 257 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.