Rex Keith, MD
NPI 1538164603 · Family Medicine Physician · Wichita, KS
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Keith, MD is a Family Medicine Physician provider in Wichita, KS (NPI 1538164603).
Provider details
- NPI number
- 1538164603
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0421457 (KS)
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
21 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
114 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 | 30 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 29 | $87 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $90 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 14 | $160 |
Typical Medicare-allowed amounts for these services range $61–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 22 |
| Montelukast Sodium | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 |
| Semaglutidebrand: Ozempic | 16 |
| Amlodipine Besylate | 15 |
| Baclofen | 14 |
| Atorvastatin Calcium | 13 |
| Losartan Potassium | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-16
- Last updated
- 2015-02-07
Frequently asked questions
- What is Rex Keith's NPI number?
- Rex Keith's National Provider Identifier (NPI) is 1538164603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rex Keith's specialty?
- Rex Keith is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rex Keith located?
- Rex Keith's practice location on file with NPPES is 707 N Emporia St, Wichita, KS 67214-3707.
- What is Rex Keith's phone number?
- The practice phone number listed in the NPPES registry for Rex Keith is (316) 858-3460.
- Does Rex Keith accept Medicare?
- Rex Keith is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rex Keith's NPI active?
- Yes — Rex Keith's NPI (1538164603) is active in the NPPES registry as of the last update on 2015-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.