Dr. Tong Thanh Ma, MD
- Medicare services, 2024
- 991
- Medicare patients, 2024
- 398
- Part D claims, 2024
- 127
- Publications
- 4
- MIPS score, 2024
- 85
- Practice address
- 5 Garrett Avenue, La Plata, MD 20646
- Practice phone
- Call (301) 609-4265
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ma's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Tong Thanh Ma is a general surgeon in La Plata, Maryland
Dr. Ma practices at University of Maryland Charles Regional Medical Center in La Plata, Maryland, part of University of Maryland Medical System.
Dr. Ma's NPI, 1518954411, was assigned on October 5, 2005. Dr. Ma graduated from Perelman School of Med at the University of Pennsylvania in 1994. Dr. Ma holds Maryland license D0055086.
- NPI
- 1518954411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385839133
- NPI enumeration date
- October 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 609-4265
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tong Thanh Ma practices at University of Maryland Charles Regional Medical Center in La Plata, Maryland
Dr. Ma's primary practice is University of Maryland Charles Regional Medical Center, at 5 Garrett Avenue, La Plata, MD 20646 in Charles County. The practice phone is (301) 609-4265.
- University of Maryland Charles Regional Medical Center5 Garrett Avenue, La Plata, MD 20646 · Charles CountyPhone(301) 609-4265
Source: Dmand AI Affiliation Data
Dr. Tong Thanh Ma is affiliated with 6 sites of care and 4 medical groups
Dr. Ma's primary practice is University of Maryland Charles Regional Medical Center in La Plata, Maryland, part of University of Maryland Medical System. Dr. Ma is also affiliated with MedStar St. Mary's Hospital. The medical group on file is UM Community Medical Group. Dmand AI also links Dr. Ma to 3 more group practices and clinics, 3 medical groups and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tong Thanh Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ma practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Charles Regional Medical Center | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tong Thanh Ma is one of 532 general surgeons in Maryland
Surgery is Dr. Ma's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Ma is licensed in Maryland.
Specialties and state licenses
- Surgery, MarylandPrimary
General surgeons near Dr. Ma
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tong Thanh Ma billed Medicare for 991 services in 2024
CMS data shows 991 Medicare services from Dr. Ma across 21 procedure codes in 2024, for 398 Medicare patients. Medicare paid $91,840 for them.
Dr. Ma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4462024: 62540%
- Surgery
- 2023: 2562024: 2633%
- Imaging
- 2023: 1172024: 10312%
Where Dr. Ma's Medicare services took place, 2024
- In an office32633%
- In a facility66567%
Dr. Ma compared with the Maryland median for general surgeons, 2024
- Dr. Ma
- Maryland median
- Medicare services
- 991vs 2304.3 times
- Medicare patients
- 398vs 1622.5 times
- Part D claims
- 83vs 263.2 times
Medians across 485 general surgeons in Maryland with Dmand AI profiles that report each measure.
Dr. Ma's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tong Thanh Ma treated 398 Medicare patients in 2024, average age 74
CMS counts 398 Medicare patients who saw Dr. Ma in 2024. The largest group is 65 to 74, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.73, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ma's median patient age at 70, with 47% women.
Dr. Ma's Medicare patients by age, 2024
Dr. Ma's Medicare patients by sex, 2024
- Women19048%
- Men20852%
Chronic conditions among Dr. Ma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Arthritis53%
- Ischemic heart disease51%
- Chronic kidney disease50%
- Heart failure42%
- COPD32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ma's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tong Thanh Ma wrote 127 Medicare Part D claims in 2024
In 2024, Dr. Ma wrote 127 Medicare Part D claims for 70 patients. 93% of them were for generic drugs. CMS names the drug for 83 of them, across 2 drugs with 11 or more claims each, at $562 in total drug cost. In 2023, CMS named 26 claims across 1 drug.
Dr. Ma's Part D claims by kind of drug, 2024
- Generic118 claims93%
- Brand-name and other9 claims7%
Dr. Ma's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ma's Part D claims, 2024
- Opioids51%65 of 127 claims
- Antibiotics27%34 of 127 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 262024: 83219%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Tong Thanh Ma scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Ma for performance year 2024, reported as part of a group. Dr. Ma accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 214 procedures of removal of tissue by Dr. Ma, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Ma's MIPS scores, performance year 2024
- 85of 100Final score
- 81.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Ma ranks in Medicare procedure volume
- Removal of tissue
- 92nd percentile214 procedures
- Hernia repair - groin (open)
- 92nd percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Tong Thanh Ma has 4 publications on record
Dmand AI links 4 papers to Dr. Ma, published from 2021 to 2025. Dr. Ma's most frequent co-author is Daniel Hal Geschwind, MD.
Dr. Ma's papers by year, 2021 to 2025
Dr. Ma's most frequent co-authors
Recent publications by Dr. Ma
Neuron
See who Dr. Ma researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ma works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Tong Thanh Ma received $2,220 in industry payments from 2016 to 2025
CMS Open Payments shows 99 general payments to Dr. Ma from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $458.
General payments to Dr. Ma by program year, 2016 to 2025
Companies that paid Dr. Ma the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tong Thanh Ma graduated from Perelman School of Med at the University of Pennsylvania
Dr. Ma graduated from Perelman School of Med at the University of Pennsylvania in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tong Thanh Ma's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tong Thanh Ma
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Tong Thanh Ma's NPI number?
Dr. Tong Thanh Ma's NPI number is 1518954411. It was assigned on October 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Tong Thanh Ma?
Dr. Tong Thanh Ma is a general surgeon in La Plata, Maryland. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Tong Thanh Ma practice?
Dr. Ma practices at 5 Garrett Avenue, La Plata, MD 20646. Dr. Ma's primary practice is University of Maryland Charles Regional Medical Center in La Plata, Maryland, part of University of Maryland Medical System. Dmand AI also links Dr. Ma to 3 group practices and clinics, 3 medical groups and 1 home health agency.
What is Dr. Tong Thanh Ma's office phone number?
The practice phone on file for Dr. Ma is (301) 609-4265.
What is Dr. Tong Thanh Ma's medical license number?
Dr. Ma holds Maryland license D0055086.
Which hospitals is Dr. Tong Thanh Ma affiliated with?
Dr. Ma practices at University of Maryland Charles Regional Medical Center in La Plata, Maryland. Dr. Ma is also affiliated with MedStar St. Mary's Hospital.
What medical group is Dr. Tong Thanh Ma part of?
Dr. Ma is linked to UM Community Medical Group. Dmand AI links Dr. Ma to 3 more medical groups.
Does Dr. Tong Thanh Ma accept Medicare?
Yes. CMS data shows Dr. Ma billed Medicare for 991 services in 2024, and Dr. Ma accepts Medicare assignment.
What is Dr. Tong Thanh Ma's MIPS score?
Dr. Ma's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Tong Thanh Ma see?
CMS counts 398 Medicare patients who saw Dr. Ma in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Tong Thanh Ma bill to Medicare?
In 2024, Dr. Ma's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and hospital inpatient care (99231).
Where did Dr. Tong Thanh Ma go to medical school?
Dr. Ma graduated from Perelman School of Med at the University of Pennsylvania in 1994.
What drugs does Dr. Tong Thanh Ma prescribe most?
In 2024 Medicare Part D data, Dr. Ma's most prescribed drugs by claims were Oxycodone-Acetaminophen and Amoxicillin-Clavulanate Potass.
Has Dr. Tong Thanh Ma received payments from drug or device companies?
CMS Open Payments shows $2,220 in general payments to Dr. Ma from 28 companies from 2016 to 2025. The largest total came from Integra LifeSciences Corporation.
How long has Dr. Tong Thanh Ma been practicing?
Dr. Ma graduated from medical school in 1994, 32 years ago.
Does Dr. Tong Thanh Ma do research?
Dmand AI links 4 publications to Dr. Ma, published from 2021 to 2025.
Who does Dr. Tong Thanh Ma publish with?
Dr. Ma's most frequent co-authors are Daniel Hal Geschwind, MD (1 shared paper).
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