DAVID D. NOWELL, PH.D.
NPI 1720356249
Psychologist - Clinical in Worcester, MA
About David D. Nowell, Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID D. NOWELL, PH.D. (NPI 1720356249) is a healthcare organization registered as a clinical in Worcester, Massachusetts and active in the NPI registry since December 2011. The organization lists David Dean Nowell, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
David D. Nowell, Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to David D. Nowell, Ph.D., which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nowell Neuropsychological Services, Inc.'s NPI number?
The NPI number for Nowell Neuropsychological Services, Inc. is 1720356249. It was assigned to this organization in the NPPES registry on December 12, 2011. The provider is doing business as David D. Nowell, Ph.D..
Where is Nowell Neuropsychological Services, Inc. located?
Nowell Neuropsychological Services, Inc. is located at 189 May St, Worcester, MA 01602. The listed phone number is (508) 471-9254.
What is Nowell Neuropsychological Services, Inc.'s specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Nowell Neuropsychological Services, Inc. enrolled in Medicare?
Yes. Nowell Neuropsychological Services, Inc. is registered in the Medicare PECOS enrollment system.
When is Nowell Neuropsychological Services, Inc.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Massachusetts, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Nowell Neuropsychological Services, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Nowell Neuropsychological Services, Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Nowell Neuropsychological Services, Inc. was last updated on December 12, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David D. Nowell, Ph.d. · NPI 1720356249
Clinical organization in Worcester, Massachusetts. Organization record, active in the CMS NPPES registry since December 12, 2011.
## Identity
- **NPI:** 1720356249 (Entity type: Organization)
- **Enumerated:** December 12, 2011
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **Legal business name:** Nowell Neuropsychological Services, Inc.
- **Organization subpart:** No
- **Authorized official:** David Nowell, PRESIDENT
## Practice location
- **Address:** 189 MAY ST, Worcester, MA 01602-4339
- **Phone:** (508) 471-9254 · **Fax:** (508) 885-8989
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, Massachusetts, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 12, 2011
- **Other identifiers:** Medicare UPIN NOW50359; Medicaid 1894579 (MA); Other 1790821411
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Source: [NPI Profile](https://npiprofile.com/npi/1720356249) · Data from the CMS NPPES public registry.