Rachel Bak, MD
NPI 1891215851 · Family Medicine Physician · Herndon, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel Bak, MD is a Family Medicine Physician provider in Herndon, VA (NPI 1891215851).
Provider details
- NPI number
- 1891215851
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0116030675 (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
9 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
253 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 159 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $100 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $199 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 17 | $16 |
| Administration of Influenza Virus VaccineG0008 | 14 | $36 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 115 | 37 |
| Levothyroxine Sodium | 72 | 21 |
| Rosuvastatin Calcium | 66 | 24 |
| Lisinopril | 49 | 16 |
| Alprazolam | 34 | 11 |
| Metformin Hcl | 32 | 13 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-21
- Last updated
- 2022-10-19
- Certified
- 2022-10-19
Frequently asked questions
- What is Rachel Bak's NPI number?
- Rachel Bak's National Provider Identifier (NPI) is 1891215851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Bak's specialty?
- Rachel Bak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rachel Bak located?
- Rachel Bak's practice location on file with NPPES is 381 Elden St Suite 1000, Herndon, VA 20170.
- What is Rachel Bak's phone number?
- The practice phone number listed in the NPPES registry for Rachel Bak is (703) 481-1505.
- Does Rachel Bak accept Medicare?
- Rachel Bak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel Bak's NPI active?
- Yes — Rachel Bak's NPI (1891215851) is active in the NPPES registry as of the last update on 2022-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.