Alan Ko
Emergency Medicine Physician · Boston, MA
Alan Ko is an emergency medicine physician with a practice address in Boston, Massachusetts, and NPI 1376990416, issued on May 18, 2016. Check the license (Massachusetts 290544, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Alan Ko
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 290544 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Boston Medical Ctr PL FL Place1, Boston, MA 02118
- Phone
- (617) 414-5481
- Enumerated
- May 18, 2016
- Record last updated
- Feb 8, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 1 Boston Medical Ctr PL FL Place1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Isabel Hardy, PA-CPhysician Assistant1649941980
- Gregory Howarth, PAPhysician Assistant1508114018
Verify Alan Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 290544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average emergency medicine physician in 2024
20 Medicare Part D claims for 11 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Alan Ko among 1,829 emergency medicine physician records in Massachusetts
Alan Ko 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 2016, is newer than 73% of them.
- NPI issued2016 · 73% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- 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).
543 emergency medicine physician records list a practice address in Boston
They are 543 of the 41,865 NPPES records with a practice address in Boston, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Boston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Evan Berg, MDBoston, MA 021181982692596
- Edward Bernstein, MDBoston, MA 021181568434926
- Andreas Dewitz, MDBoston, MA 021181740267434
- Kathryn Dyer, MDBoston, MA 021181851363048
- James Feldman, MDBoston, MA 021181801868682
- Jerrilyn Jones, MDBoston, MA 021181467435396
- Joseph Kahn, M.D.Boston, MA 021181144293572
- Ricky Kue, M.D., M.P.H.Boston, MA 021181134102395
Common questions
What is Alan Ko's NPI number?
Alan Ko's National Provider Identifier (NPI) is 1376990416, issued on May 18, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alan Ko located?
The NPPES record lists a practice address at 1 Boston Medical Ctr PL FL Place1, Boston, MA, 02118. Phone: (617) 414-5481. Providers update this record themselves, so call before visiting.
How can I verify Alan Ko's license?
NPPES lists Massachusetts license number 290544, 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 Alan Ko prescribe under Medicare Part D?
In 2024, Alan Ko had 20 Medicare Part D claims for 11 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.