Rebecca Griesemer, PA-C
NPI 1134222425 · Physician Assistant · Buffalo Grove, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rebecca Griesemer, PA-C is a Physician Assistant provider in Buffalo Grove, IL (NPI 1134222425).
Provider details
- NPI number
- 1134222425
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 085-002393 (IL)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
551 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 200 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $114 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 53 | $117 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 50 | $13 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 40 | $51 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 43 | 43 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 17 | 17 |
| Meloxicam | 16 | 11 |
| Rosuvastatin Calcium | 15 | — |
| Cefadroxil | 13 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 11 | 11 |
| Gabapentin | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$45 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2022-03-16
- Certified
- 2022-03-16
Frequently asked questions
- What is Rebecca Griesemer's NPI number?
- Rebecca Griesemer's National Provider Identifier (NPI) is 1134222425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Griesemer's specialty?
- Rebecca Griesemer is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rebecca Griesemer located?
- Rebecca Griesemer's practice location on file with NPPES is 15 S Mchenry Rd, Buffalo Grove, IL 60089-6705.
- What is Rebecca Griesemer's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Griesemer is (847) 618-0351.
- Does Rebecca Griesemer accept Medicare?
- Rebecca Griesemer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rebecca Griesemer's NPI active?
- Yes — Rebecca Griesemer's NPI (1134222425) is active in the NPPES registry as of the last update on 2022-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.