Vivien Weiss, LMHC
NPI 1811035983 · Specialist · Northampton, MA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivien Weiss, LMHC is a Specialist provider in Northampton, MA (NPI 1811035983).
Provider details
- NPI number
- 1811035983
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- LMHC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4517 (MA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
201 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy, 1 Hour90837 | 201 | $115 |
Typical Medicare-allowed amounts for these services range $115–$115 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Vivien Weiss's NPI number?
- Vivien Weiss's National Provider Identifier (NPI) is 1811035983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivien Weiss's specialty?
- Vivien Weiss is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Vivien Weiss located?
- Vivien Weiss's practice location on file with NPPES is 100 King St, Northampton, MA 01060-3243.
- What is Vivien Weiss's phone number?
- The practice phone number listed in the NPPES registry for Vivien Weiss is (413) 584-9350.
- Does Vivien Weiss accept Medicare?
- Vivien Weiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivien Weiss's NPI active?
- Yes — Vivien Weiss's NPI (1811035983) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.