Karen Hemmer, PA-C
NPI 1144461047 · Physician Assistant · Port Clinton, OH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Hemmer, PA-C is a Physician Assistant provider in Port Clinton, OH (NPI 1144461047).
Provider details
- NPI number
- 1144461047
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
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
17 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
766 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 191 | $104 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 136 | $75 |
| Advance Care Planning, First 30 Minutes99497 | 85 | $68 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 83 | $15 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 82 | $106 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 80 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 112 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 269 | 65 |
| Atorvastatin Calcium | 227 | 83 |
| Omeprazole | 145 | 52 |
| Tramadol Hcl | 137 | 45 |
| Alprazolam | 131 | 48 |
| Amlodipine Besylate | 117 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,098 across 124 records (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
Additional practice locations (1)
- 2500 W Strub RdSuite 120Sandusky, OH 44870-5390Phone: (419) 502-5911Fax: (419) 502-5912
Registry dates
- Enumerated
- 2009-03-23
- Last updated
- 2018-09-20
Frequently asked questions
- What is Karen Hemmer's NPI number?
- Karen Hemmer's National Provider Identifier (NPI) is 1144461047, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hemmer's specialty?
- Karen Hemmer is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Hemmer located?
- Karen Hemmer's practice location on file with NPPES is 611 Fulton St Ste a, Port Clinton, OH 43452-2008.
- What is Karen Hemmer's phone number?
- The practice phone number listed in the NPPES registry for Karen Hemmer is (419) 734-0699.
- Does Karen Hemmer accept Medicare?
- Karen Hemmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Hemmer's NPI active?
- Yes — Karen Hemmer's NPI (1144461047) is active in the NPPES registry as of the last update on 2018-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.