Marcie Ryan, PAC
Physician Assistant · Danville, CA
Marcie Ryan, PAC is a physician assistant with a practice address in Danville, California, and NPI 1821102393, issued on Aug 19, 2006. Check the license (California 21387, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcie Ryan
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 21387 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4165 Blackhawk Plaza Cir Ste 100, Danville, CA 94506
- Phone
- (925) 736-7070
- Enumerated
- Aug 19, 2006
- Record last updated
- Sep 15, 2017 (not updated in 9 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 4165 Blackhawk Plaza Cir Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Clarissa Fago, FNPFamily Nurse Practitioner1477747707
- Makayla FikratFamily Nurse Practitioner1558244871
- Julia GovanPhysician Assistant1689314346
- Kelsey Martin, PA-CStudent in an Organized Health Care Education/Training Program1588444541
Verify Marcie Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 21387Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average physician assistant in 2024
2,456 Medicare Part D claims for 1,016 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Atorvastatin Calcium144 claims
- Rosuvastatin Calcium120 claims
- Levothyroxine Sodium101 claims
- Amlodipine Besylate100 claims
- Tamsulosin Hcl60 claims
- Gabapentin49 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: $200.09
8 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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.
Marcie Ryan among 14,451 physician assistant records in California
Marcie Ryan, PAC 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2017 · 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).
15 physician assistant records list a practice address in Danville
They are 15 of the 897 NPPES records with a practice address in Danville, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Danville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Susanne Goeb, PA-CDanville, CA 945061992896708
- Julia GovanDanville, CA 945061689314346
- Matthew HartmanDanville, CA 945061164086948
- Hennah Shamel, PA-CDanville, CA 945061912855115
- Sia Stompro, PADanville, CA 945061942960950
- Allison Williams, PA-CDanville, CA 945061073228862
- Heather Elliott Demars, PA-CDiscovery Bay, CA 945051891017125
- Amy Miller, PAAlamo, CA 945071669425427
Common questions
What is Marcie Ryan, PAC's NPI number?
Marcie Ryan, PAC's National Provider Identifier (NPI) is 1821102393, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcie Ryan, PAC located?
The NPPES record lists a practice address at 4165 Blackhawk Plaza Cir Ste 100, Danville, CA, 94506. Phone: (925) 736-7070. Providers update this record themselves, so call before visiting.
How can I verify Marcie Ryan, PAC's license?
NPPES lists California license number 21387, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Marcie Ryan, PAC prescribe under Medicare Part D?
In 2024, Marcie Ryan, PAC had 2,456 Medicare Part D claims for 1,016 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.