Paul Guernsey, DO
NPI 1235543836 · Emergency Medicine Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Guernsey, DO is a Emergency Medicine Physician provider in Kalamazoo, MI (NPI 1235543836).
Provider details
- NPI number
- 1235543836
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101021294 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
757 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 231 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 217 | $116 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 212 | $170 |
| Critical Care, First 30-74 Minutes99291 | 67 | $207 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 30 | $69 |
Typical Medicare-allowed amounts for these services range $8–$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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 58 | 58 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 57 | 56 |
| Ondansetronbrand: Ondansetron Odt | 47 | 47 |
| Prednisone | 38 | 37 |
| Dicyclomine Hcl | 26 | 26 |
| Naproxen | 26 | 26 |
| Cefdinir | 25 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$141 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
- 2014-06-12
- Last updated
- 2022-03-18
- Certified
- 2022-03-18
Frequently asked questions
- What is Paul Guernsey's NPI number?
- Paul Guernsey's National Provider Identifier (NPI) is 1235543836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Guernsey's specialty?
- Paul Guernsey is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Guernsey located?
- Paul Guernsey's practice location on file with NPPES is 1000 Oakland Dr, Kalamazoo, MI 49008-1282.
- What is Paul Guernsey's phone number?
- The practice phone number listed in the NPPES registry for Paul Guernsey is (269) 337-4400.
- Does Paul Guernsey accept Medicare?
- Paul Guernsey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Guernsey's NPI active?
- Yes — Paul Guernsey's NPI (1235543836) is active in the NPPES registry as of the last update on 2022-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.