John Siebenlist, M.D.
NPI 1164476909 · Procedural Dermatology Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Siebenlist, M.D. is a Procedural Dermatology Physician provider in San Luis Obispo, CA (NPI 1164476909).
Provider details
- NPI number
- 1164476909
- Entity type
- Individual
- Primary specialty
- Procedural Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61826 (CA)
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
5,524 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,097 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 670 | $94 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 617 | $646 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, Each Additional Stage, 1-5 Tissue Blocks17312 | 527 | $441 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 369 | $55 |
| Complicated Repair of Wound of Forehead, Cheeks, Chin, Mouth, Neck, Underarms, Genitals, Hands, Or Feet, 2.6-7.5 Cm |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 210 | 192 |
| Cephalexin | 79 | 74 |
| Fluorouracil | 65 | 58 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 41 | 36 |
| Minoxidil | 24 | — |
| Doxycycline Hyclate | 21 | 15 |
| Mometasone Furoate | 20 | 15 |
| Fluocinolone/Shower Cap |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,226 across 51 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
- 2006-05-19
- Last updated
- 2016-03-16
Frequently asked questions
- What is John Siebenlist's NPI number?
- John Siebenlist's National Provider Identifier (NPI) is 1164476909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Siebenlist's specialty?
- John Siebenlist is listed in the NPPES registry with a primary specialty of Procedural Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is John Siebenlist located?
- John Siebenlist's practice location on file with NPPES is 1551 Bishop St, San Luis Obispo, CA 93401-4635.
- What is John Siebenlist's phone number?
- The practice phone number listed in the NPPES registry for John Siebenlist is (805) 541-0668.
- Does John Siebenlist accept Medicare?
- John Siebenlist is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Siebenlist's NPI active?
- Yes — John Siebenlist's NPI (1164476909) is active in the NPPES registry as of the last update on 2016-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.