Philip Merrill Sampson, PA-C
Medical Physician Assistant · Livingston, CA
Philip Merrill Sampson, PA-C is a medical physician assistant with a practice address in Livingston, California, and NPI 1508974213, issued on Aug 25, 2006. Check the license (California PA14693, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Philip Merrill Sampson
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- PA14693 CA
14693 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1140 Main St, Livingston, CA 95334
- Phone
- (209) 394-7913
- Enumerated
- Aug 25, 2006
- Record last updated
- Oct 24, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (209) 394-9093
- Medicaid ID
- PA14693 CA
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 1140 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Philip Merrill Sampson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA14693Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 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).
Industry payments in 2024: $1,249.44
48 payments; by number, the most common kind was food and beverage; the largest payer was Myriad Genetic Laboratories, Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Philip Merrill Sampson among 3,376 medical physician assistant records in California
Philip Merrill Sampson, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2018 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 medical physician assistant records list a practice address in Livingston
They are 2 of the 120 NPPES records with a practice address in Livingston, and 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Livingston → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Muoi Loi, PA-CLivingston, CA 953341053138826
- David Anslinger, PALathrop, CA 953301366594277
- Calbeth Alaribe, PA-CMerced, CA 953401891377081
- Linda Bates, PAMerced, CA 953401740307172
- Cecilia Jang, PA-CMerced, CA 953401073753000
- Scott Newdang, PA-CMerced, CA 953401861881690
- Benjamin Ward, PA-CMerced, CA 953401104250018
- Miriam Arana, PAMerced, CA 953411144460130
Common questions
What is Philip Merrill Sampson, PA-C's NPI number?
Philip Merrill Sampson, PA-C's National Provider Identifier (NPI) is 1508974213, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Philip Merrill Sampson, PA-C located?
The NPPES record lists a practice address at 1140 Main St, Livingston, CA, 95334. Phone: (209) 394-7913. Providers update this record themselves, so call before visiting.
How can I verify Philip Merrill Sampson, PA-C's license?
NPPES lists California license number PA14693, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Philip Merrill Sampson, PA-C's MIPS final score?
The 2023 MIPS final score is 94.6 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.