Mackenna Simpson, PA-C
NPI 1922451103 · Physician Assistant · Clackamas, OR
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenna Simpson, PA-C is a Physician Assistant provider in Clackamas, OR (NPI 1922451103).
Provider details
- NPI number
- 1922451103
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA179024 (OR)
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
9 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
135 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 54 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $73 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $63 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 | $102 |
Typical Medicare-allowed amounts for these services range $14–$102 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 31 | 17 |
| Lisinopril | 27 | 12 |
| Omeprazole | 22 | — |
| Levothyroxine Sodium | 19 | 11 |
| Hydrochlorothiazide | 18 | — |
| Amlodipine Besylate | 17 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-07-22
- Last updated
- 2021-10-13
- Certified
- 2021-10-13
Frequently asked questions
- What is Mackenna Simpson's NPI number?
- Mackenna Simpson's National Provider Identifier (NPI) is 1922451103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenna Simpson's specialty?
- Mackenna Simpson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mackenna Simpson located?
- Mackenna Simpson's practice location on file with NPPES is 9290 Se Sunnybrook Blvd, Clackamas, OR 97015-6899.
- What is Mackenna Simpson's phone number?
- The practice phone number listed in the NPPES registry for Mackenna Simpson is (503) 215-2110.
- Does Mackenna Simpson accept Medicare?
- Mackenna Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenna Simpson's NPI active?
- Yes — Mackenna Simpson's NPI (1922451103) is active in the NPPES registry as of the last update on 2021-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.