William Koonce, MD
NPI 1124010095 · Internal Medicine Physician · Santa Barbara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Koonce, MD is a Internal Medicine Physician provider in Santa Barbara, CA (NPI 1124010095).
Provider details
- NPI number
- 1124010095
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G58414 (CA)
Specialties & taxonomies
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
4,829 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,437 | $129 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 751 | $58 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 415 | $114 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 288 | $7 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 273 | $180 |
| Removal of Tissue From Wound, 20.0 Sq Cm Or Less97597 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 145 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 512 | 114 |
| Levothyroxine Sodium | 465 | 104 |
| Losartan Potassium | 442 | 85 |
| Escitalopram Oxalate | 253 | 42 |
| Gabapentin | 251 | 40 |
| Apixabanbrand: Eliquis | 232 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,055 across 52 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
- 2005-08-17
- Last updated
- 2010-09-09
Frequently asked questions
- What is William Koonce's NPI number?
- William Koonce's National Provider Identifier (NPI) is 1124010095, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Koonce's specialty?
- William Koonce is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Koonce located?
- William Koonce's practice location on file with NPPES is 219 Nogales Ave, Santa Barbara, CA 93105-3848.
- What is William Koonce's phone number?
- The practice phone number listed in the NPPES registry for William Koonce is (805) 682-7200.
- Does William Koonce accept Medicare?
- William Koonce is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Koonce's NPI active?
- Yes — William Koonce's NPI (1124010095) is active in the NPPES registry as of the last update on 2010-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.