Glenn De Guzman, P.A.
NPI 1265448294 · Physician Assistant · Norwalk, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glenn De Guzman, P.A. is a Physician Assistant provider in Norwalk, CA (NPI 1265448294).
Provider details
- NPI number
- 1265448294
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA18213 (CA)
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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
255 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 162 | $157 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 93 | $108 |
Typical Medicare-allowed amounts for these services range $108–$157 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 101 | 99 |
| Tramadol Hcl | 77 | 76 |
| Naproxen | 62 | 62 |
| Ondansetronbrand: Ondansetron Odt | 41 | 41 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 36 |
| Methylprednisolone | 26 | 26 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Glenn De Guzman's NPI number?
- Glenn De Guzman's National Provider Identifier (NPI) is 1265448294, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn De Guzman's specialty?
- Glenn De Guzman is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Glenn De Guzman located?
- Glenn De Guzman's practice location on file with NPPES is 13330 Bloomfield Ave Ste 111, Norwalk, CA 90650-3264.
- What is Glenn De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Glenn De Guzman is (562) 868-0733.
- Does Glenn De Guzman accept Medicare?
- Glenn 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 Glenn De Guzman's NPI active?
- Yes — Glenn De Guzman's NPI (1265448294) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.