Keiko Mizuguchi, LMHC
Mental Health Counselor · Boston, MA
Keiko Mizuguchi, LMHC is a mental health counselor with a practice address in Boston, Massachusetts, and NPI 1891827598, issued on Mar 9, 2007. Check the license (Massachusetts 4898, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Keiko Mizuguchi
- Credential
- LMHC
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- 4898 MA
Self-reported in NPPES; status is on the state search - Practice location
- 780 Albany St, Boston, MA 02118
- Phone
- (857) 654-1000
- Enumerated
- Mar 9, 2007
- Record last updated
- Aug 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (857) 654-1094
- Medicare enrollment
- Enrolled (PECOS I20240213002048); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 18,415 in Massachusetts → Look up another NPI →
Also registered at 780 Albany St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carolyn Abbanat Villafane, NPNurse Practitioner1598810269
- Camille AbrahamPharmacist1992579049
- June Abraham, NPAdult Health Nurse Practitioner1306916440
- Jeanne Ackerley, R.N.Registered Nurse1235251307
- Andrea AdamopoulosRegistered Nurse1346710381
- Betsy Adams, RNCase Management Registered Nurse1396176277
Verify Keiko Mizuguchi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 4898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Boston Health Care For The Homeless Program, Inc.Roxbury, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keiko Mizuguchi among 18,415 mental health counselor records in Massachusetts
Keiko Mizuguchi, LMHC is one of 18,415 mental health counselor records with a practice address in Massachusetts. 7% 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 6% of them.
- NPI issued2007 · 6% of these records are older, 84% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated1997 · median 2014 among the 1,811 with a school on file
- Record last updated2008 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
819 mental health counselor records list a practice address in Boston
They are 819 of the 41,865 NPPES records with a practice address in Boston, and 18,415 mental health counselor records in Massachusetts.
All 18,415 in Massachusetts → Every provider in Boston → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Leroy AdamsBoston, MA 021181376611459
- Danielle Ciraulo, LMHCBoston, MA 021181437287000
- Ramsey Coolidge, LMHCBoston, MA 021181982742102
- Claudia Cullen, LMHCBoston, MA 021181699807370
- Susan Haskell, LICSWBoston, MA 021181770649683
- Daphne Hubbard, EDM,LMHCBoston, MA 021181487700175
- Russell MackayBoston, MA 021181790877090
- Kim NuttallBoston, MA 021181114095270
Common questions
What is Keiko Mizuguchi, LMHC's NPI number?
Keiko Mizuguchi, LMHC's National Provider Identifier (NPI) is 1891827598, issued on Mar 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Keiko Mizuguchi, LMHC located?
The NPPES record lists a practice address at 780 Albany St, Boston, MA, 02118. Phone: (857) 654-1000. Providers update this record themselves, so call before visiting.
How can I verify Keiko Mizuguchi, LMHC's license?
NPPES lists Massachusetts license number 4898, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.