Courtney Johnson, MD, PHD
NPI 1326579160 · Dermatology Physician · Duarte, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Courtney Johnson, MD, PHD is a Dermatology Physician provider in Duarte, CA (NPI 1326579160).
Provider details
- NPI number
- 1326579160
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- C206702 (CA)
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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
478 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 113 | $128 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 87 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 82 | $93 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 52 | $58 |
| Destruction of Skin Growth, 1-14 Growths17110 | 40 | $119 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Triamcinolone Acetonide | 12 |
| Ketoconazole | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-23
- Last updated
- 2026-02-06
- Certified
- 2026-02-06
Frequently asked questions
- What is Courtney Johnson's NPI number?
- Courtney Johnson's National Provider Identifier (NPI) is 1326579160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Courtney Johnson's specialty?
- Courtney Johnson is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Courtney Johnson located?
- Courtney Johnson's practice location on file with NPPES is 1500 Duarte Rd, Duarte, CA 91010-3012.
- What is Courtney Johnson's phone number?
- The practice phone number listed in the NPPES registry for Courtney Johnson is (800) 826-4673.
- Does Courtney Johnson accept Medicare?
- Courtney Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Courtney Johnson's NPI active?
- Yes — Courtney Johnson's NPI (1326579160) is active in the NPPES registry as of the last update on 2026-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.