Gregory K. Lynch, PA-C
Physician Assistant · Corona, CA
Gregory K. Lynch, PA-C is a physician assistant with a practice address in Corona, California, and NPI 1790008175, issued on Mar 12, 2010. Check the license (California PA20639, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory K. Lynch
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA20639 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2815 S Main St Ste 215, Corona, CA 92882
- Phone
- (951) 525-3548
- Enumerated
- Mar 12, 2010
- Record last updated
- Jun 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (951) 525-3563
- Medicare enrollment
- Enrolled (PECOS I20110509000469); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Gregory K. Lynch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA20639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average physician assistant in 2024
343 Medicare Part D claims for 107 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Ketoconazole114 claims
- Triamcinolone Acetonide33 claims
- Clobetasol Propionate25 claims
- Betamethasone Dipropionate18 claims
- Doxycycline Hyclate16 claims
- Fluocinonide14 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.
Industry payments in 2024: $1,539.02
69 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. 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
- Mpz DermatologyCorona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory K. Lynch among 14,451 physician assistant records in California
Gregory K. Lynch, 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 2010, is newer than 27% of them.
- NPI issued2010 · 27% of these records are older, 70% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2009 · median 2018 among the 7,214 with a school on file
- Record last updated2019 · 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).
56 physician assistant records list a practice address in Corona
They are 56 of the 3,731 NPPES records with a practice address in Corona, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Corona → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Esther Avila, PA-CCorona, CA 928821073834065
- Cynthia Bailey, P.A.-CCorona, CA 928821316053036
- Scott Brown, P.A.-CCorona, CA 928821053427732
- Jonathan Brummond, P.A.Corona, CA 928821821104506
- Billy Earley, P.A.Corona, CA 928821962514661
- Tom Ku, P.A.-CCorona, CA 928821609955285
- Diana Lin, MSPAS, PA-CCorona, CA 928821942605811
- Nicole Newman, PA-CCorona, CA 928821184802332
Common questions
What is Gregory K. Lynch, PA-C's NPI number?
Gregory K. Lynch, PA-C's National Provider Identifier (NPI) is 1790008175, issued on Mar 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Lynch, PA-C located?
The NPPES record lists a practice address at 2815 S Main St Ste 215, Corona, CA, 92882. Phone: (951) 525-3548. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Lynch, PA-C's license?
NPPES lists California license number PA20639, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory K. Lynch, PA-C prescribe under Medicare Part D?
In 2024, Gregory K. Lynch, PA-C had 343 Medicare Part D claims for 107 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.