Valerie Pei-Sing Ng, M.D.
Emergency Medicine Physician · Cambridge, MA
Valerie Pei-Sing Ng, M.D. is an emergency medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1265675722, issued on Apr 14, 2009. Check the license (Massachusetts 254366, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Valerie Pei-Sing Ng
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 254366 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1493 Cambridge St, Cambridge, MA 02139
- Phone
- (415) 608-5448
- Enumerated
- Apr 14, 2009
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20190213001521); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2009
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 1493 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Abbas, MDStudent in an Organized Health Care Education/Training Program1225728025
- Nawyaab Abbasi, DOStudent in an Organized Health Care Education/Training Program1215875364
- Flannery AbbeySocial Worker1508604273
- Rana AbdallahSocial Worker1689220204
- Khaleel Abdul-Jabbaar, PT, DPTOrthopedic Physical Therapist1780295717
- Adri Abou-Bakr, MDStudent in an Organized Health Care Education/Training Program1770421844
Verify Valerie Pei-Sing Ng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 254366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average emergency medicine physician in 2024
143 Medicare Part D claims for 115 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
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.
Bills Medicare through one group practice
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Valerie Pei-Sing Ng among 1,829 emergency medicine physician records in Massachusetts
Valerie Pei-Sing Ng, M.D. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 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 2009, is newer than 53% of them.
- NPI issued2009 · 53% of these records are older, 44% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2009 · median 2011 among the 1,200 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 emergency medicine physician records list a practice address in Cambridge
They are 42 of the 5,145 NPPES records with a practice address in Cambridge, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Cambridge → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Miriam Aschkenasy, M.D.Cambridge, MA 021391518939503
- Paul Chen, MD, MBACambridge, MA 021391154488898
- Slava Gaufberg, MDCambridge, MA 021391568537652
- Alex Goldstein, M.D.Cambridge, MA 021391255566949
- Irvin Heifetz, MDCambridge, MA 021391811062946
- Edward Lee, M.D.Cambridge, MA 021391689846578
- Luis Lobon, M.D., M.S.Cambridge, MA 021391033156799
- Benjamin Milligan, M.D.Cambridge, MA 021391104867233
Common questions
What is Valerie Pei-Sing Ng, M.D.'s NPI number?
Valerie Pei-Sing Ng, M.D.'s National Provider Identifier (NPI) is 1265675722, issued on Apr 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Valerie Pei-Sing Ng, M.D. located?
The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (415) 608-5448. Providers update this record themselves, so call before visiting.
How can I verify Valerie Pei-Sing Ng, M.D.'s license?
NPPES lists Massachusetts license number 254366, 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 Valerie Pei-Sing Ng, M.D. prescribe under Medicare Part D?
In 2024, Valerie Pei-Sing Ng, M.D. had 143 Medicare Part D claims for 115 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.