Marichi O. Ong, M.D.
Family Medicine Physician · Bedford, NH
Marichi O. Ong, M.D. is a family medicine physician with a practice address in Bedford, New Hampshire, and NPI 1265615595, issued on Dec 10, 2007. Check the license (New Hampshire 14741, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Marichi O. Ong
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 14741 NH
N3961 TX
Self-reported in NPPES; status is on the state search - Practice location
- 25 S River RD, Bedford, NH 03110
- Phone
- (603) 695-2518
- Enumerated
- Dec 10, 2007
- Record last updated
- Apr 23, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 3074229 NH
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 25 S River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Daly, DOFamily Medicine Physician1689654980
- Joseph De Vera, MDInternal Medicine Physician1518923028
- Jamie Ellis, APRNFamily Nurse Practitioner1518900158
Verify Marichi O. Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 14741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
188 Medicare Part D claims for 63 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Simvastatin22 claims
- Levothyroxine Sodium20 claims
- Lovastatin19 claims
- Atorvastatin Calcium14 claims
- Amlodipine Besylate13 claims
- Gemfibrozil11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Marichi O. Ong among 816 family medicine physician records in New Hampshire
Marichi O. Ong, M.D. is one of 816 family medicine physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.
- NPI issued2007 · 57% of these records are older, 36% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 family medicine physician records list a practice address in Bedford
They are 28 of the 975 NPPES records with a practice address in Bedford, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Bedford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lydia Bennett, MDBedford, NH 031101497744007
- Jennifer Chaudhari, M.D.Bedford, NH 031101871530295
- Carolyn Claussen, MDBedford, NH 031101477580975
- Michael Kevin Cozzi, M.D.Bedford, NH 031101912989484
- Mary Daly, DOBedford, NH 031101689654980
- James Fitzgerald, MDBedford, NH 031101215928296
- Ghinwa Hassan, MDBedford, NH 031101922056738
- Ajay Koshy, MDBedford, NH 031101932184603
Common questions
What is Marichi O. Ong, M.D.'s NPI number?
Marichi O. Ong, M.D.'s National Provider Identifier (NPI) is 1265615595, issued on Dec 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marichi O. Ong, M.D. located?
The NPPES record lists a practice address at 25 S River RD, Bedford, NH, 03110. Phone: (603) 695-2518. Providers update this record themselves, so call before visiting.
How can I verify Marichi O. Ong, M.D.'s license?
NPPES lists New Hampshire license number 14741, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marichi O. Ong, M.D. prescribe under Medicare Part D?
In 2024, Marichi O. Ong, M.D. had 188 Medicare Part D claims for 63 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Marichi O. Ong, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.