John Vallandigham, M.D.
NPI 1265438501 · Internal Medicine Physician · Chickasha, OK
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Vallandigham, M.D. is a Internal Medicine Physician provider in Chickasha, OK (NPI 1265438501).
Provider details
- NPI number
- 1265438501
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24142 (OK)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
159 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 | 72 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 21 | $111 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $162 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 18 | $75 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 17 | $107 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 |
Practice location
Mailing address
Additional practice locations (2)
- 15705 E 112th St NOwasso, OK 74055-5028Phone: (918) 807-9063
- 591 E 36th St NTulsa, OK 74106-1812Phone: (918) 619-8700Fax: (918) 634-7884
Registry dates
- Enumerated
- 2005-06-22
- Last updated
- 2022-07-21
- Certified
- 2020-02-13
Frequently asked questions
- What is John Vallandigham's NPI number?
- John Vallandigham's National Provider Identifier (NPI) is 1265438501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Vallandigham's specialty?
- John Vallandigham is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Vallandigham located?
- John Vallandigham's practice location on file with NPPES is 304 S 29th St, Chickasha, OK 73018-2501.
- What is John Vallandigham's phone number?
- The practice phone number listed in the NPPES registry for John Vallandigham is (405) 896-8058.
- Does John Vallandigham accept Medicare?
- John Vallandigham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Vallandigham's NPI active?
- Yes — John Vallandigham's NPI (1265438501) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.