Glenn Niegas, D.O.
NPI 1912157645 · Internal Medicine Physician · Trabuco Canyon, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glenn Niegas, D.O. is a Internal Medicine Physician provider in Trabuco Canyon, CA (NPI 1912157645).
Provider details
- NPI number
- 1912157645
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A10503 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
12 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 | $130 |
Typical Medicare-allowed amounts for these services range $130–$130 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-09-30
- Last updated
- 2021-12-01
- Certified
- 2021-12-01
Frequently asked questions
- What is Glenn Niegas's NPI number?
- Glenn Niegas's National Provider Identifier (NPI) is 1912157645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Niegas's specialty?
- Glenn Niegas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Glenn Niegas located?
- Glenn Niegas's practice location on file with NPPES is 28582 Malabar Rd, Trabuco Canyon, CA 92679-1175.
- What is Glenn Niegas's phone number?
- The practice phone number listed in the NPPES registry for Glenn Niegas is (714) 403-1082.
- Does Glenn Niegas accept Medicare?
- Glenn Niegas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glenn Niegas's NPI active?
- Yes — Glenn Niegas's NPI (1912157645) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.