Chaweng Ongkasuwan, M.D.
Specialist · Baltimore, MD
Chaweng Ongkasuwan, M.D. is a specialist with a practice address in Baltimore, Maryland, and NPI 1073507273, issued on Sep 2, 2005. Check the license (Maryland D0016205, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chaweng Ongkasuwan
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- D0016205 MD
Self-reported in NPPES; status is on the state search - Practice location
- 716 Maiden Choice LN, Baltimore, MD 21228
- Phone
- (410) 788-6738
- Enumerated
- Sep 2, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (410) 719-6910
- Entity
- Type 1 · individual
8 nearest specialist records → All 938 in Maryland → Look up another NPI →
Also registered at 716 Maiden Choice LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Metts, MDInternal Medicine Physician1073565529
- Abdollah Shams Pirzadeh, MDSpecialist1609953140
- Yunyong Yunyongying, MDGeneral Practice Physician1497789564
Verify Chaweng Ongkasuwan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license D0016205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
20 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Chaweng Ongkasuwan among 938 specialist records in Maryland
Chaweng Ongkasuwan, M.D. is one of 938 specialist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 23% of these records are
- Record last updated2026 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Maryland
There are 938 specialist records in Maryland.
All 938 in Maryland → Every provider in Baltimore → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Samuel Esterson, P.T.Baltimore, MD 212281750384640
- Ronald Gray, M.D.Baltimore, MD 212281508820002
- Jay Grochmal, MDCatonsville, MD 212281114914496
- Sharon Long, CMTBaltimore, MD 212281720140460
- Willie MvembaCatonsville, MD 212281790757326
- Nasser Nasseri-Asl, MDCatonsville, MD 212281437119047
- Ava Nelson, M.D.Catonsville, MD 212281598886699
- Deborah Nicholson, M.D.Catonsville, MD 212281063576049
Common questions
What is Chaweng Ongkasuwan, M.D.'s NPI number?
Chaweng Ongkasuwan, M.D.'s National Provider Identifier (NPI) is 1073507273, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Chaweng Ongkasuwan, M.D. located?
The NPPES record lists a practice address at 716 Maiden Choice LN, Baltimore, MD, 21228. Phone: (410) 788-6738. Providers update this record themselves, so call before visiting.
How can I verify Chaweng Ongkasuwan, M.D.'s license?
NPPES lists Maryland license number D0016205, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Chaweng Ongkasuwan, M.D. prescribe under Medicare Part D?
In 2024, Chaweng Ongkasuwan, M.D. had 20 Medicare Part D claims; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.