Gayle Nissen, LCSW
NPI 1982849782 · Mental Health Counselor · Reston, VA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gayle Nissen, LCSW is a Mental Health Counselor provider in Reston, VA (NPI 1982849782).
Provider details
- NPI number
- 1982849782
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 0904005220 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
12 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) |
|---|---|---|
| Psychiatric Diagnostic Evaluation90791 | 12 | $117 |
Typical Medicare-allowed amounts for these services range $117–$117 (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
- 2008-12-08
- Last updated
- 2021-03-29
- Certified
- 2021-03-29
Frequently asked questions
- What is Gayle Nissen's NPI number?
- Gayle Nissen's National Provider Identifier (NPI) is 1982849782, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gayle Nissen's specialty?
- Gayle Nissen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gayle Nissen located?
- Gayle Nissen's practice location on file with NPPES is 1850 Cameron Glen Dr, Reston, VA 20190-3363.
- What is Gayle Nissen's phone number?
- The practice phone number listed in the NPPES registry for Gayle Nissen is (703) 481-4011.
- Does Gayle Nissen accept Medicare?
- Gayle Nissen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gayle Nissen's NPI active?
- Yes — Gayle Nissen's NPI (1982849782) is active in the NPPES registry as of the last update on 2021-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.