Julie Hwynn, M.D.
NPI 1780682401 · Internal Medicine Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Hwynn, M.D. is a Internal Medicine Physician provider in Garden Grove, CA (NPI 1780682401).
Provider details
- NPI number
- 1780682401
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A66861 (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
112 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 | 65 | $136 |
| 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 | 47 | $17 |
Typical Medicare-allowed amounts for these services range $17–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 127 | 44 |
| Rosuvastatin Calcium | 118 | 42 |
| Benazepril Hcl | 85 | 28 |
| Metformin Hcl | 78 | 24 |
| Alendronate Sodium | 75 | 24 |
| Losartan Potassium | 74 | 28 |
| Amlodipine Besylate | 69 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$408 across 20 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
- 2005-07-07
- Last updated
- 2012-02-18
Frequently asked questions
- What is Julie Hwynn's NPI number?
- Julie Hwynn's National Provider Identifier (NPI) is 1780682401, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Hwynn's specialty?
- Julie Hwynn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Hwynn located?
- Julie Hwynn's practice location on file with NPPES is 12555 Garden Grove Blvd, Garden Grove, CA 92843-1902.
- What is Julie Hwynn's phone number?
- The practice phone number listed in the NPPES registry for Julie Hwynn is (714) 741-0501.
- Does Julie Hwynn accept Medicare?
- Julie Hwynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Hwynn's NPI active?
- Yes — Julie Hwynn's NPI (1780682401) is active in the NPPES registry as of the last update on 2012-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.