Annelise Merriner, PA-C
Physician Assistant · Rancho Santa Margarita, CA
Annelise Merriner, PA-C is a physician assistant with a practice address in Rancho Santa Margarita, California, and NPI 1811238777, issued on Mar 1, 2013. Check the license (California 22953, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Annelise Merriner
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 22953 CA
PA910712 FL
Self-reported in NPPES; status is on the state search - Practice location
- 29472 Avenida DE Las Banderas, Rancho Santa Margarita, CA 92688
- Phone
- (949) 459-9968
- Enumerated
- Mar 1, 2013
- Record last updated
- Oct 26, 2023
- Fax
- (949) 766-2565
- Medicare enrollment
- Enrolled (PECOS I20151022000881); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 29472 Avenida DE Las Banderas
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eriel Datuin, MDFamily Medicine Physician1487230249
- John Foley, MDFamily Medicine Physician1699235515
- Huy Huynh, DOFamily Medicine Physician1851975866
- Iwan Nyotowidjojo, M.D.Internal Medicine Physician1578976270
- Tri Tran, PA-CMedical Physician Assistant1427447713
Verify Annelise Merriner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22953Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average physician assistant in 2024
111 Medicare Part D claims for 44 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Estradiol28 claims
- Progesterone17 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.7 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: $58.69
2 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through one group practice
- Memorialcare Medical FoundationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Annelise Merriner among 14,451 physician assistant records in California
Annelise Merriner, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 35% of them.
- NPI issued2013 · 35% of these records are older, 62% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2012 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 40% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 physician assistant records list a practice address in Rancho Santa Margarita
They are 16 of the 479 NPPES records with a practice address in Rancho Santa Margarita, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Rancho Santa Margarita → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jonathan ChapRancho Santa Margarita, CA 926881306510888
- Heather Cyge, PARancho Santa Margarita, CA 926881881939213
- Fatema Dewji, PHYSICIAN ASSISTANTRancho Santa Margarita, CA 926881609420348
- Kaitlyn GreeneRancho Santa Margarita, CA 926881881212728
- Sonja Harangozo, PA-CRancho Santa Margarita, CA 926881033459631
- Nicholas KleenRancho Santa Margarita, CA 926881750730651
- Taylor Medeiros, PA-CRancho Santa Margarita, CA 926881457936213
- Rena Palmer, PA-CRancho Santa Margarita, CA 926881205681350
Common questions
What is Annelise Merriner, PA-C's NPI number?
Annelise Merriner, PA-C's National Provider Identifier (NPI) is 1811238777, issued on Mar 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Annelise Merriner, PA-C located?
The NPPES record lists a practice address at 29472 Avenida DE Las Banderas, Rancho Santa Margarita, CA, 92688. Phone: (949) 459-9968. Providers update this record themselves, so call before visiting.
How can I verify Annelise Merriner, PA-C's license?
NPPES lists California license number 22953, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Annelise Merriner, PA-C prescribe under Medicare Part D?
In 2024, Annelise Merriner, PA-C had 111 Medicare Part D claims for 44 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Annelise Merriner, PA-C's MIPS final score?
The 2023 MIPS final score is 76.7 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.