Alexa Harkema, PA-C
NPI 1821508284 · Physician Assistant · Warren, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexa Harkema, PA-C is a Physician Assistant provider in Warren, MI (NPI 1821508284).
Provider details
- NPI number
- 1821508284
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 5601008409 (MI)
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
8 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
35 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 35 | $207 |
Typical Medicare-allowed amounts for these services range $207–$207 (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
Additional practice locations (1)
- 6777 W Maple RdWest Bloomfield, MI 48322-3013Phone: (248) 661-6440
Registry dates
- Enumerated
- 2017-10-11
- Last updated
- 2026-01-07
- Certified
- 2026-01-07
Frequently asked questions
- What is Alexa Harkema's NPI number?
- Alexa Harkema's National Provider Identifier (NPI) is 1821508284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexa Harkema's specialty?
- Alexa Harkema is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexa Harkema located?
- Alexa Harkema's practice location on file with NPPES is 11800 E 12 Mile Rd, Warren, MI 48093-3472.
- What is Alexa Harkema's phone number?
- The practice phone number listed in the NPPES registry for Alexa Harkema is (586) 576-4904.
- Does Alexa Harkema accept Medicare?
- Alexa Harkema is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexa Harkema's NPI active?
- Yes — Alexa Harkema's NPI (1821508284) is active in the NPPES registry as of the last update on 2026-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.