Jonathan R. De Guzman, PA
Surgical Physician Assistant · Mission Hills, CA
Jonathan R. De Guzman, PA is a surgical physician assistant with a practice address in Mission Hills, California, and NPI 1225121924, issued on Oct 2, 2006. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jonathan R. De Guzman
- Credential
- PA
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- 011095 NY
Self-reported in NPPES; status is on the state search - Practice location
- 11550 Indian Hills RD, Mission Hills, CA 91345
- Phone
- (818) 361-0136
- Enumerated
- Oct 2, 2006
- Record last updated
- Sep 21, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (818) 361-0136
- Medicare enrollment
- Enrolled (PECOS I20100811000474); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 11550 Indian Hills RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omaran Abdeen, M.D.Nephrology Physician1700878410
- Kiumars Arfai, MDPain Medicine (Anesthesiology) Physician1407804370
- Luis Cadena, MMS, PA-CSurgical Physician Assistant1518340371
- Rennie Cheung, D.M.D., M.DOral and Maxillofacial Surgery (Dentist)1659592632
- Joel Clarfield, M.D.Internal Medicine Physician1700941788
- Anna Cova, HADHearing Instrument Specialist1073980371
Verify Jonathan R. De Guzman 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
3.5 times the Medicare Part D claims of the average surgical physician assistant in 2024
1,078 Medicare Part D claims for 342 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 358 claims were for opioids.
Most prescribed
- Gabapentin180 claims
- Hydrocodone-Acetaminophen173 claims
- Celecoxib118 claims
- Tramadol Hcl104 claims
- Meloxicam101 claims
- Diclofenac Sodium93 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: $124.93
6 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 7,578 providers of this specialty with any payment received $703.95 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
- Ramin Ganjianpour MD IncMission Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan R. De Guzman among 1,075 surgical physician assistant records in California
Jonathan R. De Guzman, PA is one of 1,075 surgical physician assistant records with a practice address in California. 79% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 74% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2005 · median 2012 among the 649 with a school on file
- Record last updated2010 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in California
There are 1,075 surgical physician assistant records in California.
All 1,075 in California → Every provider in Mission Hills → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Luis Cadena, MMS, PA-CMission Hills, CA 913451518340371
- Christopher Gardhouse, PA-CMission Hills, CA 913451508432030
- William Guo, PA-CMission Hills, CA 913451538873195
- Brian LengCanyon Country, CA 913511710673108
- Maureen Aoys, DC, MS, PA-CValencia, CA 913551619208832
- Todd Armen, PA-CReseda, CA 913351063536522
- Michael Gonzalez, PA-CSanta Clarita, CA 913551356833578
- Michelle Murillo, PA-CReseda, CA 913351952581787
Common questions
What is Jonathan R. De Guzman, PA's NPI number?
Jonathan R. De Guzman, PA's National Provider Identifier (NPI) is 1225121924, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan R. De Guzman, PA located?
The NPPES record lists a practice address at 11550 Indian Hills RD, Mission Hills, CA, 91345. Phone: (818) 361-0136. Providers update this record themselves, so call before visiting.
How can I verify Jonathan R. De Guzman, PA's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jonathan R. De Guzman, PA prescribe under Medicare Part D?
In 2024, Jonathan R. De Guzman, PA had 1,078 Medicare Part D claims for 342 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.