Physician Profile
John O Ranker, MD is a healthcare provider in Perrysburg, OH specializing in nephrology. John trained at University of Cincinnati College of Medicine, graduating in 2003. John is also listed as specializing in internal medicine. According to Medicare claims data, John cared for 720 Medicare patients across 1,701 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
1103 VILLAGE SQUARE DR STE 205
Perrysburg, OH 43551
Within Nephrology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Most searched procedures
1,701 services · 720 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, per day, less than full month service (20 years or older) | Treatment | 90970 |
512 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
93 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
35 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
465 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
362 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
100 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
39 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
39 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
32 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
24 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Ranker is a nephrology in Perrysburg, OH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Dr. Ranker is listed at 1103 VILLAGE SQUARE DR STE 205, Perrysburg, OH 43551. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (419) 874-3246. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ranker's National Provider Identifier is 1508069444. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Ranker attended University of Cincinnati College of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
Dr. Ranker has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Ranker provides treatments such as dialysis services, per day, less than full month service and dialysis services, 4 or more physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ranker. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.