Mackenzie Pennington, PA-C
NPI 1992002570 · Physician Assistant · Los Angeles, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenzie Pennington, PA-C is a Physician Assistant provider in Los Angeles, CA (NPI 1992002570).
Provider details
- NPI number
- 1992002570
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA21245 (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
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
185 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 Moderate Level of Medical Decision Making99284 | 100 | $103 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 71 | $151 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 14 | $61 |
Typical Medicare-allowed amounts for these services range $61–$151 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 32 | 31 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 32 | 32 |
| Cephalexin | 30 | 30 |
| Azithromycin | 22 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 | 17 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 17 | 17 |
Practice location
Mailing address
Additional practice locations (1)
- 18300 Yorba Linda BlvdSte. 201Yorba Linda, CA 92886-4052Phone: (714) 577-6000
Registry dates
- Enumerated
- 2011-02-17
- Last updated
- 2018-03-17
Frequently asked questions
- What is Mackenzie Pennington's NPI number?
- Mackenzie Pennington's National Provider Identifier (NPI) is 1992002570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Pennington's specialty?
- Mackenzie Pennington is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mackenzie Pennington located?
- Mackenzie Pennington's practice location on file with NPPES is 1225 Wilshire Blvd, Los Angeles, CA 90017-1901.
- What is Mackenzie Pennington's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Pennington is (323) 226-6801.
- Does Mackenzie Pennington accept Medicare?
- Mackenzie Pennington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenzie Pennington's NPI active?
- Yes — Mackenzie Pennington's NPI (1992002570) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.