Physician Profile
Peggy S. Lai, M.D.
Unclaimed ProfileAbout Dr. Lai
Peggy S. Lai, M.D. practices internal medicine in Dallas, TX. Peggy is a 2004 graduate of Columbia University College of Physicians and Surgeons. Medicare claims data shows Peggy provided 505 services to 415 patients. The services billed most often include critical care, first 30-74 minutes, test to measure rate of airflow, and test to examine how well the lungs exchange gases.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
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.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (214) 502-8678
- Email not available
Practice Locations
9611 MILLTRAIL DR
Dallas, TX 75238
Conditions Commonly Evaluated or Treated
Within Internal 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.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
505 services · 415 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to measure rate of airflow | Treatment | 94375 |
143 | More often than most peers in Internal Medicine |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
109 | More often than most peers in Internal Medicine |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
46 | As often as other peers in Internal Medicine |
| Test to determine lung volumes using sensors | Treatment | 94726 |
44 | As often as other peers in Internal Medicine |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
14 | Less often than most peers in Internal Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
149 | More often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists in Dallas 8
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Test to measure rate of airflow 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Peggy S. Lai?
Peggy S. Lai is an internist in Dallas, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Peggy S. Lai's address?
Peggy S. Lai is listed at 9611 Milltrail Dr, Dallas, TX 75238. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Peggy S. Lai?
The number on file is (214) 502-8678. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Peggy S. Lai?
Peggy S. Lai's National Provider Identifier is 1760651087. 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
Where did Peggy S. Lai train?
Peggy S. Lai attended Columbia University College of Physicians and Surgeons, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Peggy S. Lai have?
Peggy S. Lai has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Peggy S. Lai perform?
According to Medicare billing data, Peggy S. Lai provides treatments such as test to measure rate of airflow and test to examine how well the lungs exchange gases, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Peggy S. Lai's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Peggy S. Lai. 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.