Joann Won, P.A
NPI 1073847620 · Physician Assistant · Anaheim, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joann Won, P.A is a Physician Assistant provider in Anaheim, CA (NPI 1073847620).
Provider details
- NPI number
- 1073847620
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A
- Sex
- Female
- Sole proprietor
- No
- License
- 20515 (CA)
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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
245 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 137 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $118 |
| 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 | 25 | $15 |
| Automated Urinalysis Test81003 | 14 | $2 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 13 | $50 |
Typical Medicare-allowed amounts for these services range $2–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Amlodipine Besylate | 61 | 29 |
| Levothyroxine Sodium | 52 | 22 |
| Doxycycline Hyclate | 51 | 50 |
| Fluticasone Propionate | 48 | 34 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 46 | 34 |
| Rosuvastatin Calcium | 46 | 18 |
| Azithromycin | 39 |
Practice location
Mailing address
Additional practice locations (1)
- 2501 E Chapman Ave Ste 306Orange, CA 92869-3204Phone: (714) 628-3230
Registry dates
- Enumerated
- 2009-09-30
- Last updated
- 2021-12-03
- Certified
- 2021-12-03
Frequently asked questions
- What is Joann Won's NPI number?
- Joann Won's National Provider Identifier (NPI) is 1073847620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joann Won's specialty?
- Joann Won is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joann Won located?
- Joann Won's practice location on file with NPPES is 710 N Euclid St Ste 301, Anaheim, CA 92801-4122.
- What is Joann Won's phone number?
- The practice phone number listed in the NPPES registry for Joann Won is (714) 991-8650.
- Does Joann Won accept Medicare?
- Joann Won is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joann Won's NPI active?
- Yes — Joann Won's NPI (1073847620) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.