Lauren Feng, MD
NPI 1437680279 · Family Medicine Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Feng, MD is a Family Medicine Physician provider in Naperville, IL (NPI 1437680279).
Provider details
- NPI number
- 1437680279
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036161913 (IL)
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
222 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 | 108 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $93 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 18 | $133 |
| Automated Urinalysis Test81003 | 12 | $2 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $173 |
Typical Medicare-allowed amounts for these services range $2–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 49 | 22 |
| Levothyroxine Sodium | 29 | — |
| Amlodipine Besylate | 27 | — |
| Lisinopril | 23 | — |
| Metformin Hclbrand: Metformin Hcl Er | 20 | — |
| Rosuvastatin Calcium | 19 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-23
- Last updated
- 2026-06-06
- Certified
- 2026-06-06
Frequently asked questions
- What is Lauren Feng's NPI number?
- Lauren Feng's National Provider Identifier (NPI) is 1437680279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Feng's specialty?
- Lauren Feng is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lauren Feng located?
- Lauren Feng's practice location on file with NPPES is 1247 Rickert Dr Ste 201, Naperville, IL 60540-8213.
- What is Lauren Feng's phone number?
- The practice phone number listed in the NPPES registry for Lauren Feng is (630) 357-7979.
- Does Lauren Feng accept Medicare?
- Lauren Feng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Feng's NPI active?
- Yes — Lauren Feng's NPI (1437680279) is active in the NPPES registry as of the last update on 2026-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.