Holly Harris, LCSW
NPI 1679642656 · Clinical Social Worker · Naperville, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Harris, LCSW is a Clinical Social Worker provider in Naperville, IL (NPI 1679642656).
Provider details
- NPI number
- 1679642656
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 149005422 (IL)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
207 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 | 207 | $111 |
Typical Medicare-allowed amounts for these services range $111–$111 (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
Additional practice locations (1)
- 4320 Winfield RdSuite 200Warrenville, IL 60555-4018Phone: (630) 660-7248
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2018-05-04
Frequently asked questions
- What is Holly Harris's NPI number?
- Holly Harris's National Provider Identifier (NPI) is 1679642656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Harris's specialty?
- Holly Harris is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Holly Harris located?
- Holly Harris's practice location on file with NPPES is 24w788 75th St, Naperville, IL 60565-1684.
- What is Holly Harris's phone number?
- The practice phone number listed in the NPPES registry for Holly Harris is (630) 660-7248.
- Does Holly Harris accept Medicare?
- Holly Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Harris's NPI active?
- Yes — Holly Harris's NPI (1679642656) is active in the NPPES registry as of the last update on 2018-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.