What is William Horton's NPI number?

William Horton's National Provider Identifier (NPI) is 1790125102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Horton's specialty?

William Horton is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).

Where is William Horton located?

William Horton's practice location on file with NPPES is 415 Ray C Hunt Dr Ste 2100, Charlottesville, VA 22903-2980.

What is William Horton's phone number?

The practice phone number listed in the NPPES registry for William Horton is (434) 924-1825.

Does William Horton accept Medicare?

William Horton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is William Horton's NPI active?

Yes — William Horton's NPI (1790125102) is active in the NPPES registry as of the last update on 2023-08-10.

IndividualActiveAccepts Medicare

William Horton, M.D.

NPI 1790125102 · Endocrinology, Diabetes & Metabolism Physician · Charlottesville, VA

William Horton, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Charlottesville, VA (NPI 1790125102).

Provider details

NPI number: 1790125102
Entity type: Individual
Primary specialty: Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 0101263267 (VA)

Practice location

415 Ray C Hunt Dr Ste 2100

Charlottesville, VA 22903-2980

Phone: (434) 924-1825

Fax: (434) 244-9456

Street-level locationGet directions

More VA providers

Mailing address

Po Box 9007

Charlottesville, VA 22906-9007

Specialties & taxonomies

Endocrinology, Diabetes & Metabolism PhysicianPrimary207RE0101XLicense 0101263267 (VA)
Allopathic & Osteopathic Physicians

Additional practice locations (3)

2500 N State St
Jackson, MS 39216
Phone: (601) 984-5601
2500 N State St
Jackson, MS 39216-4500
Phone: (601) 984-5601
1015 Spring Creek Pkwy
Zion Crossroads, VA 22942-7019
Phone: (434) 243-9466
Fax: (434) 243-9499

Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
13 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
4 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
363 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 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)
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	115	$16
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	59	$63
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	58	$93
Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251	31	$33
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	27	$47

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar	122	30
Empagliflozinbrand: Jardiance	121	25
Metformin Hcl	59	17
Levothyroxine Sodium	50	17
Semaglutidebrand: Ozempic	49	12
Atorvastatin Calcium	46	13

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$20 across 1 record (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.

Enumerated: 2013-06-29
Last updated: 2023-08-10
Certified: 2023-08-10

Frequently asked questions

What is William Horton's NPI number?: William Horton's National Provider Identifier (NPI) is 1790125102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Horton's specialty?: William Horton is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
Where is William Horton located?: William Horton's practice location on file with NPPES is 415 Ray C Hunt Dr Ste 2100, Charlottesville, VA 22903-2980.
What is William Horton's phone number?: The practice phone number listed in the NPPES registry for William Horton is (434) 924-1825.
Does William Horton accept Medicare?: William Horton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is William Horton's NPI active?: Yes — William Horton's NPI (1790125102) is active in the NPPES registry as of the last update on 2023-08-10.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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)
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	115	$16
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	59	$63
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	58	$93
Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251	31	$33
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	27	$47

Drug

Part D claims (2024)

Beneficiaries

Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar

122

Empagliflozinbrand: Jardiance

121

Metformin Hcl

Levothyroxine Sodium

Semaglutidebrand: Ozempic

Atorvastatin Calcium

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$20 across 1 record (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (3)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (3)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments