Chelsea Tretter, PA
NPI 1174099592 · Physician Assistant · Lakewood, CO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chelsea Tretter, PA is a Physician Assistant provider in Lakewood, CO (NPI 1174099592).
Provider details
- NPI number
- 1174099592
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
434 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 | 85 | $101 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 84 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 57 | $11 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 52 | $40 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 49 | $72 |
| Automated Urinalysis Test81003 | 31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 31 | 30 |
| Prednisone | 25 | 25 |
| Amoxicillin | 19 | 19 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 14 | 14 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 14 | 14 |
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
Additional practice locations (2)
- 600 William St Apt 550Oakland, CA 94612-5403Phone: (909) 615-3204
- 840 Irving StSan Francisco, CA 94122Phone: (415) 590-6140
Registry dates
- Enumerated
- 2018-10-23
- Last updated
- 2026-03-25
- Certified
- 2026-03-25
Frequently asked questions
- What is Chelsea Tretter's NPI number?
- Chelsea Tretter's National Provider Identifier (NPI) is 1174099592, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chelsea Tretter's specialty?
- Chelsea Tretter is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Chelsea Tretter located?
- Chelsea Tretter's practice location on file with NPPES is 1687 Cole Blvd Ste 150, Lakewood, CO 80401-3322.
- What is Chelsea Tretter's phone number?
- The practice phone number listed in the NPPES registry for Chelsea Tretter is (720) 712-0796.
- Does Chelsea Tretter accept Medicare?
- Chelsea Tretter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chelsea Tretter's NPI active?
- Yes — Chelsea Tretter's NPI (1174099592) is active in the NPPES registry as of the last update on 2026-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.