Physician Profile
William J. Liaw, D.O. practices family medicine in Macungie, PA. William is a 1994 graduate of Philadelphia College of Osteopathic Medicine. According to Medicare claims data, William cared for 1,008 Medicare patients across 1,295 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, 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', and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
3760 BROOKSIDE RD
Macungie, PA 18062
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
1,295 services · 1,008 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
92 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
19 |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
18 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
18 |
| Administration of vaccine | Treatment | 90471 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
497 |
| 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' | Billing code | G2211 |
221 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
196 |
| Administration of influenza virus vaccine | Billing code | G0008 |
85 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
59 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William J. Liaw is a family doctor in Macungie, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
William J. Liaw is listed at 3760 Brookside Rd, Macungie, PA 18062. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (610) 628-7111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William J. Liaw's National Provider Identifier is 1508825548. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
William J. Liaw attended Philadelphia College of Osteopathic Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
William J. Liaw has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William J. Liaw provides treatments such as influenza vaccine split virus, preservative free and pneumococcal conjugate vaccine, 20 valent , for intramuscular use, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by William J. Liaw. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.