Alexa Knopf, OTR/L
Occupational Therapist · Waltham, MA
Alexa Knopf, OTR/L is an occupational therapist with a practice address in Waltham, Massachusetts, and NPI 1881165702, issued on Dec 17, 2018. Check the license (Massachusetts 13009, 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
- Alexa Knopf
- Credential
- OTR/L
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- 13009 MA
Self-reported in NPPES; status is on the state search - Practice location
- 179 Bear Hill RD Ste 105, Waltham, MA 02451
- Phone
- (609) 202-5353
- Enumerated
- Dec 17, 2018
- Entity
- Type 1 · individual
Also registered at 179 Bear Hill RD Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bianna Abamelik, OTR/LOccupational Therapist1225825227
- Colleen George, M.A. CCC-SLPSpeech-Language Pathologist1225529977
- Samantha Hancock, CCC-SLPSpeech-Language Pathologist1174112270
- Sura Hassoun, OTR/LOccupational Therapist1912786443
- Atarah Joshua, PTNeurology Physical Therapist1215492780
- John Marmarou, DPT, MSCSNeurology Physical Therapist1598954679
Verify Alexa Knopf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 13009Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
72 occupational therapist records list a Waltham practice address
They are 72 of the 2,111 NPPES records with a Waltham practice address, and 3,525 occupational therapist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 72 in Waltham → All 3,525 in Massachusetts → Every provider in Waltham →
Other occupational therapist records in Massachusetts
- Bianna Abamelik, OTR/LWaltham, MA1225825227
- Krysten AbboudNewton, MA1841073467
- Kristen Abel, OTRLowell, MA1508115015
- Amanda AbrahamWellesley, MA1578719035
- Dalia AbrahamMethuen, MA1760167522
- Elizabeth Abril, OTR/LBrockton, MA1174963003
- Janet Ackerman, OTSomerville, MA1689246423
- Marjory AckermanFlorence, MA1942618236
- Lisa Adams, MS, OTR/LHingham, MA1942809462
- Laurie Adelstein, OTRWestborough, MA1295887693
Common questions
What is Alexa Knopf, OTR/L's NPI number?
Alexa Knopf, OTR/L's National Provider Identifier (NPI) is 1881165702, issued on Dec 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alexa Knopf, OTR/L located?
The NPPES record lists a practice address at 179 Bear Hill RD Ste 105, Waltham, MA, 02451. Phone: (609) 202-5353. Providers update this record themselves, so call before visiting.
How can I verify Alexa Knopf, OTR/L's license?
NPPES lists Massachusetts license number 13009, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.