Physician Profile
Thomas Ammen Showalter, D.O.
Unclaimed ProfileAbout Dr. Showalter
Thomas Ammen Showalter, D.O. practices medical oncology in Oklahoma City, OK. Thomas is a 2005 graduate of Oklahoma State University College of Osteopathic Medicine. Thomas is also listed as specializing in internal medicine. According to Medicare claims data, Thomas cared for 908 Medicare patients across 1,741 services.
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
- (405) 773-6400
- Email not available
Practice Locations
5915 W MEMORIAL RD SUITE 200
Oklahoma City, OK 73142
Conditions Commonly Evaluated or Treated
Within Medical Oncology 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
1,741 services · 908 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| 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 |
560 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
472 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
385 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
107 |
| 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 |
85 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
77 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
21 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
18 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
16 |
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 medical oncology specialists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 14 related providers in 3 groups
Other medical oncology specialists in Oklahoma City 4
Same specialty, same city.
Trained at Oklahoma State University College of Osteopathic Medicine 2
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Oklahoma State University College of Osteopathic Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Showalter's specialty?
Dr. Showalter is a medical oncology in Oklahoma City, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “MEDICAL ONCOLOGY”.
NPI registry
Where can I find Dr. Showalter?
Dr. Showalter is listed at 5915 W MEMORIAL RD SUITE 200, Oklahoma City, OK 73142. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Showalter?
The number on file is (405) 773-6400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Showalter's NPI number?
Dr. Showalter's National Provider Identifier is 1780853358. 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
What is Dr. Showalter's medical education?
Dr. Showalter attended Oklahoma State University College of Osteopathic Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Showalter been practicing?
Dr. Showalter has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Showalter known for?
According to Medicare billing data, Dr. Showalter the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Showalter confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Showalter. 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.