Ashley Mergelmeyer, PA-C
Physician Assistant · Mission Viejo, CA
Ashley Mergelmeyer, PA-C is a physician assistant with a practice address in Mission Viejo, California, and NPI 1902397219, issued on May 22, 2018. Check the license (California PA58519, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Mergelmeyer
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA58519 CA
PA11954 TX
Self-reported in NPPES; status is on the state search - Practice location
- 26732 Crown Valley Pkwy Ste 351, Mission Viejo, CA 92691
- Phone
- (949) 364-1007
- Enumerated
- May 22, 2018
- Record last updated
- Feb 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 26732 Crown Valley Pkwy Ste 351
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Verify Ashley Mergelmeyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA58519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average physician assistant in 2024
31 Medicare Part D claims for 18 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 12 claims were for opioids.
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.
Ashley Mergelmeyer among 14,451 physician assistant records in California
Ashley Mergelmeyer, 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2021 · 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).
50 physician assistant records list a practice address in Mission Viejo
They are 50 of the 2,156 NPPES records with a practice address in Mission Viejo, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Mission Viejo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kira Babb, PA-CMission Viejo, CA 926911730318767
- Stephanie Blodgett, PA-CMission Viejo, CA 926911720287170
- Tria Brummond, PA-CMission Viejo, CA 926911952461659
- Cassandra Karn, P.A.Mission Viejo, CA 926911245247774
- Linda Kiehlmeir, P.A-CMission Viejo, CA 926911902834575
- Lara Manchik, P.A.C.Mission Viejo, CA 926911639108327
- John Mellott, P.A.Mission Viejo, CA 926911023041902
- Lorelei Opene, PA-CMission Viejo, CA 926911659350445
Common questions
What is Ashley Mergelmeyer, PA-C's NPI number?
Ashley Mergelmeyer, PA-C's National Provider Identifier (NPI) is 1902397219, issued on May 22, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Mergelmeyer, PA-C located?
The NPPES record lists a practice address at 26732 Crown Valley Pkwy Ste 351, Mission Viejo, CA, 92691. Phone: (949) 364-1007. Providers update this record themselves, so call before visiting.
How can I verify Ashley Mergelmeyer, PA-C's license?
NPPES lists California license number PA58519, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Mergelmeyer, PA-C prescribe under Medicare Part D?
In 2024, Ashley Mergelmeyer, PA-C had 31 Medicare Part D claims for 18 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.