Julie Sim, M.D.
NPI 1912985276 · Internal Medicine Physician · Fredericksburg, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Sim, M.D. is a Internal Medicine Physician provider in Fredericksburg, VA (NPI 1912985276).
Provider details
- NPI number
- 1912985276
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 0101243006 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
220 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 | 136 | $86 |
| Administration of Influenza Virus VaccineG0008 | 36 | $32 |
| Admn Sarscov2 Vacc 1 Dose90480 | 34 | $42 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 14 | $55 |
Typical Medicare-allowed amounts for these services range $32–$86 (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 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 102 | 34 |
| Amlodipine Besylate | 75 | 23 |
| Lisinopril | 60 | 18 |
| Levothyroxine Sodium | 52 | 14 |
| Gabapentin | 51 | 19 |
| Rosuvastatin Calcium | 40 | 15 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-06
- Last updated
- 2022-01-10
- Certified
- 2022-01-10
Frequently asked questions
- What is Julie Sim's NPI number?
- Julie Sim's National Provider Identifier (NPI) is 1912985276, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Sim's specialty?
- Julie Sim is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Sim located?
- Julie Sim's practice location on file with NPPES is 1201 Hospital Dr, Fredericksburg, VA 22401-8428.
- What is Julie Sim's phone number?
- The practice phone number listed in the NPPES registry for Julie Sim is (540) 368-3700.
- Does Julie Sim accept Medicare?
- Julie Sim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Sim's NPI active?
- Yes — Julie Sim's NPI (1912985276) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.