Felix Nathan, LCSW-C
NPI 1093811044 · Clinical Social Worker · Cambridge, MD
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Felix Nathan, LCSW-C is a Clinical Social Worker provider in Cambridge, MD (NPI 1093811044).
Provider details
- NPI number
- 1093811044
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-C
- Sex
- Male
- Sole proprietor
- No
- License
- 13006 (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
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
368 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 | 315 | $67 |
| Psychotherapy, 45 Minutes90834 | 53 | $67 |
Typical Medicare-allowed amounts for these services range $67–$67 (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)
- 813 Chesapeake Dr Ste 1Cambridge, MD 21613Phone: (410) 221-2266Fax: (410) 221-2878
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2019-06-12
Frequently asked questions
- What is Felix Nathan's NPI number?
- Felix Nathan's National Provider Identifier (NPI) is 1093811044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Felix Nathan's specialty?
- Felix Nathan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Felix Nathan located?
- Felix Nathan's practice location on file with NPPES is 813 Chesapeake Dr Ste 1, Cambridge, MD 21613.
- What is Felix Nathan's phone number?
- The practice phone number listed in the NPPES registry for Felix Nathan is (410) 221-2266.
- Does Felix Nathan accept Medicare?
- Felix Nathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Felix Nathan's NPI active?
- Yes — Felix Nathan's NPI (1093811044) is active in the NPPES registry as of the last update on 2019-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.