Physician Profile
William Kellar Winkelmeyer, M.D.
Unclaimed ProfileAbout Dr. Winkelmeyer
William Kellar Winkelmeyer, M.D. practices nephrology in Columbia, MO. Medicare claims data shows William provided 2,243 services to 1,255 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (573) 499-0642
- Email not available
Practice Locations
1205 W BROADWAY
Columbia, MO 65203
Conditions Commonly Evaluated or Treated
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.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
2,243 services · 1,255 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
151 |
| Hemodialysis procedure requiring repeated evaluation | Treatment | 90937 |
126 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
108 |
| 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' | Billing code | G2211 |
532 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
382 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
358 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
310 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
116 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
97 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
34 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nephrology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nephrology specialists in Columbia 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, 4 or more physician visits per month (20 years or older) 8
Providers in MO who bill this service to Medicare most often.
Common questions
What does Dr. Winkelmeyer specialize in?
Dr. Winkelmeyer is a nephrology in Columbia, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Where is Dr. Winkelmeyer located?
Dr. Winkelmeyer is listed at 1205 W BROADWAY, Columbia, MO 65203. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Winkelmeyer's phone number?
The number on file is (573) 499-0642. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Winkelmeyer?
Dr. Winkelmeyer's National Provider Identifier is 1316943475. 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
Where did Dr. Winkelmeyer go to medical school?
Dr. Winkelmeyer attended Other, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Winkelmeyer have?
Dr. Winkelmeyer has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Winkelmeyer do most often?
According to Medicare billing data, Dr. Winkelmeyer provides treatments such as dialysis services, 4 or more physician visits per month and hemodialysis procedure requiring repeated evaluation, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Winkelmeyer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Winkelmeyer. 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.