Allen Flickinger, MD
NPI 1538137229 · Nephrology Physician · Toledo, OH
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Flickinger, MD is a Nephrology Physician provider in Toledo, OH (NPI 1538137229).
Provider details
- NPI number
- 1538137229
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5855 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,484 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 | 883 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 193 | $171 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 192 | $117 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 96 | $125 |
| 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 | 61 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bumetanide | 123 | 31 |
| Lisinopril | 69 | 19 |
| Losartan Potassium | 60 | 20 |
| Carvedilol | 60 | 16 |
| Potassium Chloride | 55 | 12 |
| Dapagliflozin Propanediolbrand: Farxiga | 36 | — |
| Furosemide | 36 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2020-03-25
- Certified
- 2020-03-25
Frequently asked questions
- What is Allen Flickinger's NPI number?
- Allen Flickinger's National Provider Identifier (NPI) is 1538137229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Flickinger's specialty?
- Allen Flickinger is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Flickinger located?
- Allen Flickinger's practice location on file with NPPES is 2109 Hughes, Toledo, OH 43606.
- What is Allen Flickinger's phone number?
- The practice phone number listed in the NPPES registry for Allen Flickinger is (419) 479-2650.
- Does Allen Flickinger accept Medicare?
- Allen Flickinger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Flickinger's NPI active?
- Yes — Allen Flickinger's NPI (1538137229) is active in the NPPES registry as of the last update on 2020-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.