Stephen Ngo, M.D
Pediatric Emergency Medicine (Emergency Medicine) Physician · Weymouth, MA
Stephen Ngo, M.D is a pediatric emergency medicine (emergency medicine) physician with a practice address in Weymouth, Massachusetts, and NPI 1881085496, issued on Feb 18, 2015. Check the license (Massachusetts 286327, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Stephen Ngo
- Credential
- M.D
- Primary taxonomy
- Pediatric Emergency Medicine (Emergency Medicine) Physician 207PP0204X
- License number
- 286327 MA
Self-reported in NPPES; status is on the state search - Practice location
- Coastal Medical Associates, Weymouth, MA 02190
- Phone
- (781) 624-8000
- Enumerated
- Feb 18, 2015
- Record last updated
- Jul 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210602002105); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2018
- Entity
- Type 1 · individual
8 nearest pediatric emergency medicine (emergency medicine) physician records → All 30 in Massachusetts → Look up another NPI →
Also registered at Coastal Medical Associates
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Akintunde Akinkuolie, MBBS,MPHHospitalist Physician1699203471
Verify Stephen Ngo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 286327Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% more Medicare Part D claims than the average pediatric emergency medicine (emergency medicine) physician in 2024
171 Medicare Part D claims for 95 beneficiaries, against an average of 89 among the 103 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 13 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil20 claims
- Azithromycin12 claims
- Oxycodone Hcl12 claims
- Prednisone12 claims
- Eliquis11 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): 82.8 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).
Bills Medicare through one group practice
- Coastal Medical AssociatesWeymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Ngo among 30 pediatric emergency medicine (emergency medicine) physician records in Massachusetts
Stephen Ngo, M.D is one of 30 pediatric emergency medicine (emergency medicine) physician records with a practice address in Massachusetts. 27% 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 63% of them.
- NPI issued2015 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 27% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated2018 · median 2015 among the 10 with a school on file
- Record last updated2021 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PP0204X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Emergency Medicine (Emergency Medicine) Physician providers in Massachusetts
There are 30 pediatric emergency medicine (emergency medicine) physician records in Massachusetts.
All 30 in Massachusetts → Every provider in Weymouth → Pediatric Emergency Medicine (Emergency Medicine) Physician nationwide →
The 8 pediatric emergency medicine (emergency medicine) physician records with the nearest ZIP codes
- Jenna Lillemoe, MDS Weymouth, MA 021901538689781
- Lindsey Burghardt, MDBraintree, MA 021841578619250
- Anna GardnerBoston, MA 021151336433598
- Alexandria Georgadarellis, MDBoston, MA 021151891287207
- Jamie Lim, MDBoston, MA 021151407315740
- Raina Paul, M.D.Boston, MA 021151275791931
- Robert Rosen, MDBoston, MA 021151396240107
- Katherine Ryan, MDBoston, MA 021151548765852
Common questions
What is Stephen Ngo, M.D's NPI number?
Stephen Ngo, M.D's National Provider Identifier (NPI) is 1881085496, issued on Feb 18, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Ngo, M.D located?
The NPPES record lists a practice address at Coastal Medical Associates, Weymouth, MA, 02190. Phone: (781) 624-8000. Providers update this record themselves, so call before visiting.
How can I verify Stephen Ngo, M.D's license?
NPPES lists Massachusetts license number 286327, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Ngo, M.D prescribe under Medicare Part D?
In 2024, Stephen Ngo, M.D had 171 Medicare Part D claims for 95 beneficiaries; the average among pediatric emergency medicine (emergency medicine) physician prescribers was 89. Part D covers Medicare prescriptions only.
What is Stephen Ngo, M.D's MIPS final score?
The 2023 MIPS final score is 82.8 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.