Zachary Ladner, PA
Medical Physician Assistant · Brentwood, CA
Zachary Ladner, PA is a medical physician assistant with a practice address in Brentwood, California, and NPI 1699986935, issued on May 25, 2007. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary Ladner
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 350 John Muir Pkwy, Brentwood, CA 94513
- Phone
- (925) 513-2646
- Enumerated
- May 25, 2007
- Record last updated
- Feb 25, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080529000320); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 350 John Muir Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosemary Canales, CNPFamily Nurse Practitioner1366602146
- James Greer, DPMPodiatrist1376632596
- Jessica Hill, RN, FNPFamily Nurse Practitioner1114315520
- Walter Savage, MDCardiovascular Disease Physician1417985276
- William Vance, P.T.Orthopedic Physical Therapist1679818645
- Sandra Zarich, FNPFamily Nurse Practitioner1063913762
Verify Zachary Ladner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.0 times the Medicare Part D claims of the average medical physician assistant in 2024
9,160 Medicare Part D claims for 1,596 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Rosuvastatin Calcium1,326 claims
- Ezetimibe837 claims
- Atorvastatin Calcium708 claims
- Carvedilol626 claims
- Eliquis613 claims
- Metoprolol Succinate594 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): 85.7 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: $1,462.28
71 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Bills Medicare through one group practice
- John Muir Physician NetworkBrentwood, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Ladner among 3,376 medical physician assistant records in California
Zachary Ladner, PA 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 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 68% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2007 · median 2012 among the 1,347 with a school on file
- Record last updated2016 · 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).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Brentwood → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Timothy Ray, PA-CBrentwood, CA 945131205234606
- Larry Angel, PA-CBenicia, CA 945101154708881
- Rachel KennedyBenicia, CA 945101801095799
- Margaret Bear, PA-CAntioch, CA 945091073460341
- Katherine De Castro, PA-CAntioch, CA 945091598501991
- James Jewell, PAAntioch, CA 945091437172848
- Christina Ramsden, PAAntioch, CA 945091497013965
- Jason Thompson, PAAntioch, CA 945091285157818
Common questions
What is Zachary Ladner, PA's NPI number?
Zachary Ladner, PA's National Provider Identifier (NPI) is 1699986935, issued on May 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Ladner, PA located?
The NPPES record lists a practice address at 350 John Muir Pkwy, Brentwood, CA, 94513. Phone: (925) 513-2646. Providers update this record themselves, so call before visiting.
How can I verify Zachary Ladner, PA's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary Ladner, PA prescribe under Medicare Part D?
In 2024, Zachary Ladner, PA had 9,160 Medicare Part D claims for 1,596 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Zachary Ladner, PA's MIPS final score?
The 2023 MIPS final score is 85.7 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.