Frederick Arndt, MD
NPI 1629125596 · Nephrology Physician · Lexington, KY
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Arndt, MD is a Nephrology Physician provider in Lexington, KY (NPI 1629125596).
Provider details
- NPI number
- 1629125596
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 41829 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
423 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 196 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 124 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 44 | $172 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 25 | $130 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 23 | $80 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 11 |
Practice location
Mailing address
Additional practice locations (1)
- 77 Mack Walters RdSte 300Shelbyville, KY 40065-1789Phone: (502) 437-5161Fax: (502) 437-5163
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2022-04-04
- Certified
- 2022-04-04
Frequently asked questions
- What is Frederick Arndt's NPI number?
- Frederick Arndt's National Provider Identifier (NPI) is 1629125596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Arndt's specialty?
- Frederick Arndt is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Arndt located?
- Frederick Arndt's practice location on file with NPPES is 800 Rose St, Lexington, KY 40536-1789.
- What is Frederick Arndt's phone number?
- The practice phone number listed in the NPPES registry for Frederick Arndt is (859) 323-6047.
- Does Frederick Arndt accept Medicare?
- Frederick Arndt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Arndt's NPI active?
- Yes — Frederick Arndt's NPI (1629125596) is active in the NPPES registry as of the last update on 2022-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.