Gerrit Kleyn, PAC
NPI 1972533230 · Physician Assistant · Wyoming, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerrit Kleyn, PAC is a Physician Assistant provider in Wyoming, MI (NPI 1972533230).
Provider details
- NPI number
- 1972533230
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Male
- Sole proprietor
- No
- License
- 5601004040 (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
19 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
172 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 120 | $68 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $57 |
Typical Medicare-allowed amounts for these services range $57–$68 (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 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 196 | 86 |
| Amlodipine Besylate | 108 | 42 |
| Gabapentin | 105 | 35 |
| Lisinopril | 94 | 40 |
| Omeprazole | 93 | 33 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 86 | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2017-12-01
Frequently asked questions
- What is Gerrit Kleyn's NPI number?
- Gerrit Kleyn's National Provider Identifier (NPI) is 1972533230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerrit Kleyn's specialty?
- Gerrit Kleyn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gerrit Kleyn located?
- Gerrit Kleyn's practice location on file with NPPES is 2215 44th St Sw, Wyoming, MI 49519-6439.
- What is Gerrit Kleyn's phone number?
- The practice phone number listed in the NPPES registry for Gerrit Kleyn is (616) 252-8300.
- Does Gerrit Kleyn accept Medicare?
- Gerrit Kleyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerrit Kleyn's NPI active?
- Yes — Gerrit Kleyn's NPI (1972533230) is active in the NPPES registry as of the last update on 2017-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.