Dr. Van Lam , MD
Internal Medicine • Carrollton, TX
1601 W Hebron Pkwy Ste 100
Carrollton, TX 750106342
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on February 7, 2006; this date does not establish years in practice.
-
Published CMS data list 1,489 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 223 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 209 service units.
- 80053 — Blood test, comprehensive group of blood chemicals: 187 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 21 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 5,852 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Atorvastatin Calcium — 417 prescription fills, including refills.
- Amlodipine Besylate — 323 prescription fills, including refills.
- Metformin Hcl — 297 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 104 records in the table · Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 21 clinicians with data). Median for this group: 703. Middle half: 320 to 1,893.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 1,654 in 2020 to 1,489 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1601 W Hebron Pkwy Ste 100
Carrollton, TX 750106342
CMS Doctors and Clinicians lists 2 distinct group names: Legacy Healthcare Services Inc; Medical Clinic Of North Texas, Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Tulane University School Of Medicine
1996
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
143 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $55,788 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $43,217 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
15,019 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$410,518 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2019
All general payments: $203.38 across 14 records.
By nature of payment
- Food and Beverage: $203.38 across 14 records.
Reporting-company totals (3 largest of 7)
- Sanofi and Genzyme US Companies: $56.94 across 4 records.
- AstraZeneca Pharmaceuticals LP: $46.94 across 3 records.
- Merck Sharp & Dohme Corporation: $34.49 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2019 (published June 30, 2026).
Years since graduation
30 years (graduated 1996)
CMS Doctors and Clinicians data list 1996 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Lam has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Lam as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Carrollton and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 21 clinicians with data). Median for this group: 703. Middle half: 320 to 1,893.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Medicare-allowed amount
A lower Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 21 clinicians with data). Median for this group: $63,913. Middle half: $28,350 to $100,623.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 21 clinicians with data). Median for this group: $49,575. Middle half: $21,898 to $73,950.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 20 clinicians with data). Median for this group: 4,707. Middle half: 879 to 6,489.
More Part D prescriptions than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Carrollton, TX (2024, 20 clinicians with data). Median for this group: $276,120. Middle half: $66,433 to $591,458.
A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
27 active clinicians are listed under Internal Medicine with a practice address in Carrollton, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Carrollton
40.7% of these 27 clinicians have the CMS telehealth indicator.
74.1% of these 27 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services decreased 10% from 1,654 in 2020 to 1,489 in 2024.
- 2020: 1,654
- 2021: 1,828
- 2022: 1,768
- 2023: 1,732
- 2024: 1,489
-
Medicare-allowed amount
Medicare-allowed amount stayed about the same: $55,896 in 2020 and $55,788 in 2024.
- 2020: $55,896
- 2021: $68,732
- 2022: $70,176
- 2023: $67,251
- 2024: $55,788
-
Paid by Medicare
Paid by Medicare varied from year to year: $41,546 in 2020 and $43,217 in 2024.
- 2020: $41,546
- 2021: $52,581
- 2022: $52,647
- 2023: $51,990
- 2024: $43,217
-
Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 5,462 in 2020 and 5,852 in 2024.
- 2020: 5,462
- 2021: 5,339
- 2022: 5,697
- 2023: 5,744
- 2024: 5,852
-
30-day fills
30-day fills increased 16% from 13,002 in 2020 to 15,019 in 2024.
- 2020: 13,002
- 2021: 13,314
- 2022: 13,989
- 2023: 14,255
- 2024: 15,019
-
Part D drug cost
Part D drug cost stayed about the same: $378,556 in 2020 and $410,518 in 2024.
- 2020: $378,556
- 2021: $390,062
- 2022: $435,921
- 2023: $488,106
- 2024: $410,518
-
Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2019 (payments made January 1 – December 31, 2019): 14 records totaling $203.38.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
SHINGRIX | General | $18.12 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
Vyvanse | General | $17.25 |
| Medtronic USA, Inc. |
Food and Beverage
In-kind items and services
|
VECTRIS | General | $15.86 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $15.70 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $15.70 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $15.54 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TOUJEO | General | $15.44 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TOUJEO | General | $15.18 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TOUJEO | General | $14.24 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $13.78 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
JANUVIA | General | $12.19 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TOUJEO | General | $12.08 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
JANUVIA | General | $11.44 |
| Merck Sharp & Dohme Corporation |
Food and Beverage
In-kind items and services
|
JANUVIA | General | $10.86 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
223 | 117 | $219.00 | $121.41 |
|
36415
Insertion of needle into vein for collection of blood sample
|
209 | 121 | $10.09 | $8.61 |
|
80053
Blood test, comprehensive group of blood chemicals
|
187 | 119 | $29.00 | $10.26 |
|
80061
Blood test, lipids (cholesterol and triglycerides)
|
181 | 116 | $37.00 | $13.01 |
|
84443
Blood test, thyroid stimulating hormone (tsh)
|
107 | 93 | $48.00 | $16.34 |
|
85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
|
107 | 97 | $22.00 | $7.61 |
|
83036
Hemoglobin a1c level
|
100 | 62 | $27.00 | $9.45 |
|
G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
87 | 87 | $240.00 | $123.51 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
48 | 39 | $150.00 | $86.51 |
|
84439
Thyroxine (thyroid chemical), free
|
34 | 21 | $25.00 | $8.64 |
|
G0103
Prostate cancer screening; prostate specific antigen test (psa)
|
33 | 33 | $51.00 | $18.92 |
|
G0444
Annual depression screening, 5 to 15 minutes
|
22 | 22 | $37.00 | $17.08 |
|
84153
Psa (prostate specific antigen) measurement, total
|
21 | 15 | $51.00 | $18.02 |
|
82044
Urine microalbumin (protein) analysis
|
20 | 18 | $13.00 | $6.11 |
|
82570
Creatinine level to test for kidney function or muscle injury
|
20 | 18 | $15.00 | $5.08 |
|
84550
Uric acid level, blood
|
19 | 12 | $13.00 | $4.43 |
|
80048
Blood test, basic group of blood chemicals (calcium, total)
|
16 | 14 | $24.00 | $8.29 |
|
90653
Influenza vaccine, inactivated
|
15 | 15 | $183.40 | $81.82 |
|
G0008
Administration of influenza virus vaccine
|
15 | 15 | $51.00 | $31.03 |
|
87086
Bacterial colony count, urine
|
14 | 13 | $24.00 | $7.91 |
|
82306
Vitamin d-3 level
|
11 | 11 | $75.00 | $29.01 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 417 | 37,796 | $2,674.97 | 127 |
| Amlodipine Besylate | Amlodipine Besylate | 323 | 29,055 | $1,749.53 | 97 |
| Metformin Hcl | Metformin Hcl | 297 | 27,485 | $2,250.86 | 90 |
| Lisinopril | Lisinopril | 276 | 25,439 | $1,621.54 | 83 |
| Pravastatin Sodium | Pravastatin Sodium | 242 | 22,330 | $3,081.92 | 69 |
| Losartan Potassium | Losartan Potassium | 193 | 18,030 | $1,357.92 | 61 |
| Meloxicam | Meloxicam | 187 | 9,470 | $633.07 | 69 |
| Levothyroxine Sodium | Levothyroxine Sodium | 183 | 15,338 | $1,554.62 | 54 |
| Tamsulosin Hcl | Tamsulosin Hcl | 159 | 13,258 | $1,727.20 | 42 |
| Simvastatin | Simvastatin | 147 | 13,850 | $806.07 | 43 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 130 | 12,075 | $1,617.09 | 48 |
| Omeprazole | Omeprazole | 117 | 9,989 | $2,368.34 | 44 |
| Fluticasone Propionate | Fluticasone Propionate | 110 | 7,836 | $1,998.83 | 44 |
| Gabapentin | Gabapentin | 103 | 7,520 | $1,950.45 | 41 |
| Metoprolol Succinate | Metoprolol Succinate | 102 | 9,040 | $1,108.35 | 33 |
| Glimepiride | Glimepiride | 100 | 8,670 | $1,021.23 | 29 |
| Tramadol Hcl | Tramadol Hcl | 89 | 2,251 | $603.21 | 19 |
| Carvedilol | Carvedilol | 86 | 7,839 | $629.11 | 26 |
| Trazodone Hcl | Trazodone Hcl | 80 | 4,890 | $540.08 | 23 |
| Allopurinol | Allopurinol | 79 | 7,324 | $438.11 | 25 |
| Alendronate Sodium | Alendronate Sodium | 69 | 5,572 | $449.59 | 19 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 68 | 4,275 | $12,474.10 | 16 |
| Montelukast Sodium | Montelukast Sodium | 68 | 5,840 | $587.16 | 23 |
| Pantoprazole Sodium | Pantoprazole Sodium | 67 | 5,350 | $884.60 | 19 |
| Jardiance | Empagliflozin | 67 | 5,700 | $110,074.51 | 24 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 208000000X
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PEDIATRIC MEDICINE
I20041124000312
TX
4183689623
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Legacy Healthcare Services Inc
800 College Pkwy, Lewisville, TX 750773503
Phone: 9724208543
Medical Clinic Of North Texas, Pllc
1601 W Hebron Pkwy, Carrollton, TX 750106342
Phone: 9724268675
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1601 W HEBRON PKWY STE 100, CARROLLTON, TX 750106342 (Tel: 9724268675)
Registered at 1601 W HEBRON PKWY STE 100, CARROLLTON, TX 750106342 (Tel: 9724268675)
Pediatrics (license number reported to NPPES: TX L0361)
NPI status registered as active in NPPES database
Registered at 1601 W. HEBRON PARKWAY, SUITE 100, CARROLLTON, TX 75010 (Tel: 9724268675)
Registered at 1601 W. HEBRON PARKWAY, SUITE 100, CARROLLTON, TX 75010 (Tel: 9724268675)
Recorded as VAN LAM, M.D.
Internal Medicine (license number reported to NPPES: TX L0361)
Pediatrics (license number reported to NPPES: TX L0361)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Carrollton
- Dr. Hardeep Rai, MD
- Dr. Anita Patel, DO
- Dr. James Lee, MD
- Dr. Farida Valliani, MD
- Jannet Bux
- Dr. Bushra Abbasi, MD
Mailing Address
1601 W Hebron Pkwy Ste 100
Carrollton, TX 750106342
Phone: 9724268675