William Lien, M.D.
NPI 1396708210 · Family Medicine Physician · Boyertown, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Lien, M.D. is a Family Medicine Physician provider in Boyertown, PA (NPI 1396708210).
Provider details
- NPI number
- 1396708210
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD069895L (PA)
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
791 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 | 505 | $122 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 116 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 | $86 |
| Administration of Influenza Virus VaccineG0008 | 67 | $29 |
| Stool Analysis for Blood to Screen for Colon Tumors82270 | 14 | $4 |
Typical Medicare-allowed amounts for these services range $4–$122 (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 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 309 | 84 |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 187 | 185 |
| Benazepril Hcl | 133 | 36 |
| Rosuvastatin Calcium | 122 | 36 |
| Amlodipine Besylate | 107 | 31 |
| Metformin Hcl | 103 | 27 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-11
- Last updated
- 2007-11-27
Frequently asked questions
- What is William Lien's NPI number?
- William Lien's National Provider Identifier (NPI) is 1396708210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Lien's specialty?
- William Lien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Lien located?
- William Lien's practice location on file with NPPES is 9 Rowell Rd, Boyertown, PA 19512-8933.
- What is William Lien's phone number?
- The practice phone number listed in the NPPES registry for William Lien is (610) 369-0900.
- Does William Lien accept Medicare?
- William Lien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Lien's NPI active?
- Yes — William Lien's NPI (1396708210) is active in the NPPES registry as of the last update on 2007-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.