Eva Costlow, LCSW-C
NPI 1811594849 · Clinical Social Worker · Frederick, MD
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eva Costlow, LCSW-C is a Clinical Social Worker provider in Frederick, MD (NPI 1811594849).
Provider details
- NPI number
- 1811594849
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 21001 (MD)
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
5 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
155 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, 45 Minutes90834 | 155 | $77 |
Typical Medicare-allowed amounts for these services range $77–$77 (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
- 2020-10-02
- Last updated
- 2020-10-02
- Certified
- 2020-09-29
Frequently asked questions
- What is Eva Costlow's NPI number?
- Eva Costlow's National Provider Identifier (NPI) is 1811594849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eva Costlow's specialty?
- Eva Costlow is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Eva Costlow located?
- Eva Costlow's practice location on file with NPPES is 226 S Jefferson St, Frederick, MD 21701-6205.
- What is Eva Costlow's phone number?
- The practice phone number listed in the NPPES registry for Eva Costlow is (301) 663-6135.
- Does Eva Costlow accept Medicare?
- Eva Costlow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eva Costlow's NPI active?
- Yes — Eva Costlow's NPI (1811594849) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.