Maria Clarissa Ong Tio, M.D.
Internal Medicine Physician · Jackson, MS
Maria Clarissa Ong Tio, M.D. is an internal medicine physician with a practice address in Jackson, Mississippi, and NPI 1508253188, issued on Apr 21, 2015. Check the license (Mississippi 28495, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Maria Clarissa Ong Tio
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 28495 MS
Self-reported in NPPES; status is on the state search - Practice location
- 2500 N State St, Jackson, MS 39216
- Phone
- (601) 815-4775
- Enumerated
- Apr 21, 2015
- Record last updated
- Jan 18, 2022
- Fax
- (601) 815-4775
- Medicare enrollment
- Enrolled (PECOS I20210709002746); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Also registered at 2500 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maria Clarissa Ong Tio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 28495Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
503 Medicare Part D claims for 131 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Losartan Potassium71 claims
- Calcitriol40 claims
- Nifedipine Er33 claims
- Amlodipine Besylate32 claims
- Farxiga28 claims
- Torsemide25 claims
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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $165.15
4 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- State OF Mississippi-University OF Mississippi Medical CenterJackson, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Clarissa Ong Tio among 972 internal medicine physician records in Mississippi
Maria Clarissa Ong Tio, M.D. is one of 972 internal medicine physician records with a practice address in Mississippi. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 57% of them.
- NPI issued2015 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2015 · median 2008 among the 585 with a school on file
- Record last updated2022 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
328 internal medicine physician records list a practice address in Jackson
They are 328 of the 6,997 NPPES records with a practice address in Jackson, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Jackson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Enderle, MDJackson, MS 392161477598522
- Barbara Fedor, MDJackson, MS 392161366472896
- James Glisson, M.D.Jackson, MS 392161245274281
- Jo Harbour, MDJackson, MS 392161609809771
- Denise Harkins, MDJackson, MS 392161124094453
- Richard Jackson, M.D.Jackson, MS 392161134153687
- Harriet Jones, M.DJackson, MS 392161184672750
- Robert Lynch, M.D.Jackson, MS 392161780614339
Common questions
What is Maria Clarissa Ong Tio, M.D.'s NPI number?
Maria Clarissa Ong Tio, M.D.'s National Provider Identifier (NPI) is 1508253188, issued on Apr 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Maria Clarissa Ong Tio, M.D. located?
The NPPES record lists a practice address at 2500 N State St, Jackson, MS, 39216. Phone: (601) 815-4775. Providers update this record themselves, so call before visiting.
How can I verify Maria Clarissa Ong Tio, M.D.'s license?
NPPES lists Mississippi license number 28495, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria Clarissa Ong Tio, M.D. prescribe under Medicare Part D?
In 2024, Maria Clarissa Ong Tio, M.D. had 503 Medicare Part D claims for 131 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Maria Clarissa Ong Tio, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.