Grace Yoon, MD
NPI 1518454511 · Family Medicine Physician · Muskogee, OK
Enrolled with Medicare as Order and Referring Only - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Yoon, MD is a Family Medicine Physician provider in Muskogee, OK (NPI 1518454511).
Provider details
- NPI number
- 1518454511
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
682 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) |
|---|---|---|
| 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 | 319 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 314 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 49 | $61 |
Typical Medicare-allowed amounts for these services range $15–$90 (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 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 451 | 67 |
| Fluticasone Propionate | 275 | 75 |
| Lisinopril | 273 | 47 |
| Levothyroxine Sodiumbrand: Synthroid | 253 | 35 |
| Atorvastatin Calcium | 243 | 49 |
| Losartan Potassium | 239 | 35 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-16
- Last updated
- 2021-08-31
- Certified
- 2021-08-31
Frequently asked questions
- What is Grace Yoon's NPI number?
- Grace Yoon's National Provider Identifier (NPI) is 1518454511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Yoon's specialty?
- Grace Yoon is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Yoon located?
- Grace Yoon's practice location on file with NPPES is 1001 S 41st St E, Muskogee, OK 74403-6253.
- What is Grace Yoon's phone number?
- The practice phone number listed in the NPPES registry for Grace Yoon is (918) 781-6500.
- Does Grace Yoon accept Medicare?
- Grace Yoon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Yoon's NPI active?
- Yes — Grace Yoon's NPI (1518454511) is active in the NPPES registry as of the last update on 2021-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.