Dr. Charles Ma, MD
- Medicare services, 2024
- 540
- Medicare patients, 2024
- 197
- Part D claims, 2024
- 317
- Publications
- 10
- Hospital affiliations
- 2
- Practice address
- 12040 Ne 128th St, Kirkland, WA 98034
- Practice phone
- Call (425) 899-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
EvergreenHealth Medical Center Kirkland
Kirkland, Washington
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. Charles Ma is a hospitalist in Kirkland, Washington
Dr. Ma practices at EvergreenHealth Medical Center Kirkland in Kirkland, Washington.
Dr. Ma's NPI, 1205377579, was assigned on March 20, 2017. Dr. Ma graduated from Saint Louis University School of Medicine in 2017. Dr. Ma holds Washington license MD61138984.
- NPI
- 1205377579NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143598037
- NPI enumeration date
- March 20, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (425) 899-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles Ma practices at EvergreenHealth Medical Center Kirkland in Kirkland, Washington
Dr. Ma's primary practice is EvergreenHealth Medical Center Kirkland, at 12040 Ne 128th St, Kirkland, WA 98034 in King County. The practice phone is (425) 899-1000.
- EvergreenHealth Medical Center Kirkland12040 Ne 128th St, Kirkland, WA 98034 · King CountyPhone(425) 899-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Charles Ma is affiliated with 4 sites of care and 3 medical groups
Dr. Ma's primary practice is EvergreenHealth Medical Center Kirkland in Kirkland, Washington. Dr. Ma is also affiliated with EvergreenHealth Medical Center. The medical group on file is Booth Gardner Parkinson's Care Center. Dmand AI also links Dr. Ma to 1 more hospital, 2 medical groups and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charles Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ma practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| EvergreenHealth Medical Center Kirkland | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles Ma is one of 766 hospitalists in Washington
Hospitalist is Dr. Ma's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ma is licensed in Washington.
Specialties and state licenses
- Hospitalist, WashingtonPrimary
Hospitalists near Dr. Ma
Counts of hospitalists 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. Charles Ma billed Medicare for 540 services in 2024
CMS data shows 540 Medicare services from Dr. Ma across 3 procedure codes in 2024, for 197 Medicare patients. Medicare paid $41,472 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9932024: 54046%
Dr. Ma compared with the Washington median for hospitalists, 2024
- Dr. Ma
- Washington median
- Medicare services
- 540vs 31472% above
- Medicare patients
- 197vs 15725% above
- Part D claims
- 94vs 402.4 times
Medians across 696 hospitalists in Washington 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ma and other hospitalists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles Ma treated 197 Medicare patients in 2024, average age 77
CMS counts 197 Medicare patients who saw Dr. Ma in 2024. The largest group is 75 to 84, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.71, 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 78, with 56% women.
Dr. Ma's Medicare patients by age, 2024
Dr. Ma's Medicare patients by sex, 2024
- Women10453%
- Men9347%
Chronic conditions among Dr. Ma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Heart failure52%
- Chronic kidney disease49%
- Ischemic heart disease48%
- Atrial fibrillation46%
- Diabetes46%
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 78
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles Ma wrote 317 Medicare Part D claims in 2024
In 2024, Dr. Ma wrote 317 Medicare Part D claims for 119 patients. 88% of them were for generic drugs. CMS names the drug for 94 of them, across 7 drugs with 11 or more claims each, at $9,133 in total drug cost. In 2023, CMS named 109 claims across 7 drugs.
Dr. Ma's Part D claims by kind of drug, 2024
- Generic280 claims88%
- Brand-name and other37 claims12%
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
- Opioids8%26 of 317 claims
- Antibiotics14%45 of 317 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: 1092024: 9414%
Drugs named by CMS: 7 in 2024, 7 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
How Dr. Charles Ma takes part in Medicare
Dr. Ma accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Charles Ma has 10 publications on record
Dmand AI links 10 papers to Dr. Ma, published from 2010 to 2020. 2011 was the busiest year, with 2. The most frequent topics are Malaria Vaccines, Antibodies, Protozoan and Antigens, Protozoan. Dr. Ma has published most often in Appl Microbiol Biotechnol.
Dr. Ma's papers by year, 2010 to 2020
Topics Dr. Ma writes about most
- Malaria Vaccines
- Antibodies, Protozoan
- Antigens, Protozoan
- Mice, Inbred BALB C
- Nanoparticles
- Polyethyleneimine
- Vaccines, DNA
- Ferric Compounds
Recent publications by Dr. Ma
Appl Microbiol Biotechnol
J Control Release
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 hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Charles Ma received $850 in industry payments from 2022 to 2025
CMS Open Payments shows 9 general payments to Dr. Ma from 7 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 64% of the total. bioMerieux paid the most, $305.
General payments to Dr. Ma by program year, 2022 to 2025
General payments to Dr. Ma by kind, 2022 to 2025
- Food and beverage$54564%
- Consulting fees$30536%
Companies that paid Dr. Ma the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles Ma graduated from Saint Louis University School of Medicine
Dr. Ma graduated from Saint Louis University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charles 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Charles 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. Charles Ma's NPI number?
Dr. Charles Ma's NPI number is 1205377579. It was assigned on March 20, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Ma?
Dr. Charles Ma is a hospitalist in Kirkland, Washington. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Charles Ma practice?
Dr. Ma practices at 12040 Ne 128th St, Kirkland, WA 98034. Dr. Ma's primary practice is EvergreenHealth Medical Center Kirkland in Kirkland, Washington. Dmand AI also links Dr. Ma to 1 hospital, 2 medical groups and 1 ambulatory surgery center.
What is Dr. Charles Ma's office phone number?
The practice phone on file for Dr. Ma is (425) 899-1000.
What is Dr. Charles Ma's medical license number?
Dr. Ma holds Washington license MD61138984.
Which hospitals is Dr. Charles Ma affiliated with?
Dr. Ma is affiliated with EvergreenHealth Medical Center. Dmand AI links Dr. Ma to 1 more hospital.
What medical group is Dr. Charles Ma part of?
Dr. Ma is linked to Booth Gardner Parkinson's Care Center. Dmand AI links Dr. Ma to 2 more medical groups.
Does Dr. Charles Ma accept Medicare?
Yes. CMS data shows Dr. Ma billed Medicare for 540 services in 2024, and Dr. Ma accepts Medicare assignment.
How many Medicare patients does Dr. Charles Ma see?
CMS counts 197 Medicare patients who saw Dr. Ma in 2024, with an average age of 77.
What services does Dr. Charles Ma bill to Medicare?
In 2024, Dr. Ma's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
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Where did Dr. Charles Ma go to medical school?
Dr. Ma graduated from Saint Louis University School of Medicine in 2017.
What drugs does Dr. Charles Ma prescribe most?
In 2024 Medicare Part D data, Dr. Ma's most prescribed drugs by claims were Oxycodone HCl, Atorvastatin Calcium and Torsemide.
Has Dr. Charles Ma received payments from drug or device companies?
CMS Open Payments shows $850 in general payments to Dr. Ma from 7 companies from 2022 to 2025. The largest total came from bioMerieux.
How long has Dr. Charles Ma been practicing?
Dr. Ma graduated from medical school in 2017, 9 years ago.
Does Dr. Charles Ma do research?
Dmand AI links 10 publications to Dr. Ma, published from 2010 to 2020.
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