Grace Hwang, MD
NPI 1053720797 · Surgery Physician · Orange, CA
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Hwang, MD is a Surgery Physician provider in Orange, CA (NPI 1053720797).
Provider details
- NPI number
- 1053720797
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A125505 (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
11 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
255 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $98 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 43 | $179 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 43 | $81 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 29 | $134 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 28 | $135 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl | 40 | 35 |
| Cyclobenzaprine Hcl | 32 | 24 |
| Metronidazole | 27 | 27 |
| Neomycin Sulfate | 26 | 26 |
| Ibuprofen | 26 | 24 |
| Ondansetron Hcl | 23 | 18 |
| Hydrocortisone | 22 | 15 |
| Gabapentin | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$499 across 6 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
- 2014-08-06
- Last updated
- 2020-03-16
- Certified
- 2020-03-16
Frequently asked questions
- What is Grace Hwang's NPI number?
- Grace Hwang's National Provider Identifier (NPI) is 1053720797, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Hwang's specialty?
- Grace Hwang is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Hwang located?
- Grace Hwang's practice location on file with NPPES is 1010 W La Veta Ave Ste 470, Orange, CA 92868-4305.
- What is Grace Hwang's phone number?
- The practice phone number listed in the NPPES registry for Grace Hwang is (714) 202-5682.
- Does Grace Hwang accept Medicare?
- Grace Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Hwang's NPI active?
- Yes — Grace Hwang's NPI (1053720797) is active in the NPPES registry as of the last update on 2020-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.