Peter Keenan, MD
NPI 1699068601 · Emergency Medicine Physician · Los Alamitos, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Keenan, MD is a Emergency Medicine Physician provider in Los Alamitos, CA (NPI 1699068601).
Provider details
- NPI number
- 1699068601
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- Q3901 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
980 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 416 | $9 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 410 | $187 |
| Critical Care, First 30-74 Minutes99291 | 82 | $231 |
| X-Ray of Chest, 1 View71045 | 38 | $9 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 12 | $90 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 11 | $150 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 63 | 63 |
| Ondansetronbrand: Ondansetron Odt | 18 | 17 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 18 | 18 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 15 | 15 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 14 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-24
- Last updated
- 2025-03-26
- Certified
- 2025-03-26
Frequently asked questions
- What is Peter Keenan's NPI number?
- Peter Keenan's National Provider Identifier (NPI) is 1699068601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Keenan's specialty?
- Peter Keenan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Keenan located?
- Peter Keenan's practice location on file with NPPES is 3751 Katella Ave, Los Alamitos, CA 90720-3113.
- What is Peter Keenan's phone number?
- The practice phone number listed in the NPPES registry for Peter Keenan is (562) 598-1311.
- Does Peter Keenan accept Medicare?
- Peter Keenan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Keenan's NPI active?
- Yes — Peter Keenan's NPI (1699068601) is active in the NPPES registry as of the last update on 2025-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.