Katherine Longsdorf, MD
NPI 1568468569 · Family Medicine Physician · Ashland, OH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Longsdorf, MD is a Family Medicine Physician provider in Ashland, OH (NPI 1568468569).
Provider details
- NPI number
- 1568468569
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 350-82781-L (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
834 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 | 333 | $77 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 207 | $66 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 158 | $45 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 85 | $16 |
| Administration of Influenza Virus VaccineG0008 | 37 | $30 |
| Automated Urinalysis Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 130 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 557 | 145 |
| Lisinopril | 440 | 115 |
| Levothyroxine Sodium | 400 | 101 |
| Omeprazole | 298 | 69 |
| Amlodipine Besylate | 258 | 69 |
| Metoprolol Succinate | 253 | 62 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Additional practice locations (1)
- 1033 Ashland Rd Ste 205Mansfield, OH 44905-2156Phone: (567) 345-3030Fax: (567) 345-3031
Registry dates
- Enumerated
- 2005-06-23
- Last updated
- 2020-11-06
- Certified
- 2020-11-06
Frequently asked questions
- What is Katherine Longsdorf's NPI number?
- Katherine Longsdorf's National Provider Identifier (NPI) is 1568468569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Longsdorf's specialty?
- Katherine Longsdorf is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Longsdorf located?
- Katherine Longsdorf's practice location on file with NPPES is 2111 Claremont Ave, Ashland, OH 44805-3547.
- What is Katherine Longsdorf's phone number?
- The practice phone number listed in the NPPES registry for Katherine Longsdorf is (419) 281-5575.
- Does Katherine Longsdorf accept Medicare?
- Katherine Longsdorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Longsdorf's NPI active?
- Yes — Katherine Longsdorf's NPI (1568468569) is active in the NPPES registry as of the last update on 2020-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.