Jonathan De Guzman, PA
NPI 1225121924 · Surgical Physician Assistant · Mission Hills, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan De Guzman, PA is a Surgical Physician Assistant provider in Mission Hills, CA (NPI 1225121924).
Provider details
- NPI number
- 1225121924
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 011095 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
54 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Incision of Knee Joint With Removal of Cartilage of Front and Back of Knee27335 | 18 | $56 |
| Incision of Back Portion of Knee Joint Capsule27435 | 18 | $59 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 18 | $182 |
Typical Medicare-allowed amounts for these services range $56–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 180 | 73 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 173 | 63 |
| Celecoxib | 118 | 66 |
| Tramadol Hcl | 104 | 37 |
| Meloxicam | 101 | 48 |
| Diclofenac Sodium | 93 | 41 |
| Methylprednisolone | 91 | 86 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2010-09-21
Frequently asked questions
- What is Jonathan De Guzman's NPI number?
- Jonathan De Guzman's National Provider Identifier (NPI) is 1225121924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan De Guzman's specialty?
- Jonathan De Guzman is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jonathan De Guzman located?
- Jonathan De Guzman's practice location on file with NPPES is 11550 Indian Hills Rd, Mission Hills, CA 91345-1200.
- What is Jonathan De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Jonathan De Guzman is (818) 361-0136.
- Does Jonathan De Guzman accept Medicare?
- Jonathan De Guzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan De Guzman's NPI active?
- Yes — Jonathan De Guzman's NPI (1225121924) is active in the NPPES registry as of the last update on 2010-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.