Jon Chancellor, MD
NPI 1598708794 · Family Medicine Physician · Kerrville, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jon Chancellor, MD is a Family Medicine Physician provider in Kerrville, TX (NPI 1598708794).
Provider details
- NPI number
- 1598708794
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- M0372 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,733 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 529 | $81 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 482 | $162 |
| 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'SG2211 | 369 | $15 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 213 | $50 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 183 | $105 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 157 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 426 | 111 |
| Atorvastatin Calcium | 350 | 106 |
| Amlodipine Besylate | 345 | 101 |
| Lisinopril | 311 | 91 |
| Losartan Potassium | 272 | 78 |
| Metoprolol Succinate | 264 | 72 |
| Montelukast Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$603 across 38 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-14
- Last updated
- 2024-01-04
- Certified
- 2023-11-30
Frequently asked questions
- What is Jon Chancellor's NPI number?
- Jon Chancellor's National Provider Identifier (NPI) is 1598708794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jon Chancellor's specialty?
- Jon Chancellor is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jon Chancellor located?
- Jon Chancellor's practice location on file with NPPES is 703 Hill Country Dr Ste 301, Kerrville, TX 78028-6162.
- What is Jon Chancellor's phone number?
- The practice phone number listed in the NPPES registry for Jon Chancellor is (830) 792-4805.
- Does Jon Chancellor accept Medicare?
- Jon Chancellor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jon Chancellor's NPI active?
- Yes — Jon Chancellor's NPI (1598708794) is active in the NPPES registry as of the last update on 2024-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.