John M. Costello, CCC-SLP
Speech-Language Pathologist · Waltham, MA
John M. Costello, CCC-SLP is a speech-language pathologist with a practice address in Waltham, Massachusetts, and NPI 1962472720, issued on Jan 25, 2006. Check the license (Massachusetts 2970, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John M. Costello
- Credential
- CCC-SLP
- Primary taxonomy
- Speech-Language Pathologist 235Z00000X
- License number
- 2970 MA
Self-reported in NPPES; status is on the state search - Practice location
- 9 Hope Ave, Waltham, MA 02453
- Phone
- (781) 216-2220
- Enumerated
- Jan 25, 2006
- Record last updated
- Jul 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20250725000904); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 9 Hope Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer AmatoClinical Neuropsychologist1750759940
- Angela Andreoli, PHARMDPharmacist1851505903
- Nick Athas, M.P.T.Physical Therapist1356386080
- Danielle Barnack, DPTPhysical Therapist1073848768
- Alyssa Barzach, M.S., CCC-SLPSpeech-Language Pathologist1003691874
- David Battit, MSW, LICSWClinical Social Worker1952450751
Verify John M. Costello in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
120 speech-language pathologist records list a practice address in Waltham
They are 120 of the 2,111 NPPES records with a practice address in Waltham, and 3,980 speech-language pathologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 120 in Waltham → All 3,980 in Massachusetts → Every provider in Waltham →
Other speech-language pathologist records in Massachusetts
- Brianna Abbas, MS, CCC-SLPDartmouth, MA1013757616
- Mary Abbott, CCC/SLPAmherst, MA1518067263
- Anna AbboudBrookline, MA1972154581
- Amy AbdallaDartmouth, MA1356637730
- Linda Abdelahad, MED,CCC,SLPBrockton, MA1063525400
- Ahmed Abdelal, PH.D., CCCPlymouth, MA1689718876
- Maria Abdo, M.S., CCC-SLPWaltham, MA1306325642
- Sheeva Abolhassani, SHEEVA ABOLHASSANIDracut, MA1174814198
- Salma Abounadi, MS CCC SLPChelmsford, MA1295076180
- Julia AbovichSomerville, MA1831917541
Common questions
What is John M. Costello, CCC-SLP's NPI number?
John M. Costello, CCC-SLP's National Provider Identifier (NPI) is 1962472720, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John M. Costello, CCC-SLP located?
The NPPES record lists a practice address at 9 Hope Ave, Waltham, MA, 02453. Phone: (781) 216-2220. Providers update this record themselves, so call before visiting.
How can I verify John M. Costello, CCC-SLP's license?
NPPES lists Massachusetts license number 2970, 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. 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.