Mary Ziegler, LCSW-C
NPI 1295811644 · Clinical Social Worker · Westminster, MD
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ziegler, LCSW-C is a Clinical Social Worker provider in Westminster, MD (NPI 1295811644).
Provider details
- NPI number
- 1295811644
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- CW016995 (PA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
202 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 | 202 | $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
- 2006-10-28
- Last updated
- 2019-11-07
Frequently asked questions
- What is Mary Ziegler's NPI number?
- Mary Ziegler's National Provider Identifier (NPI) is 1295811644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ziegler's specialty?
- Mary Ziegler is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Ziegler located?
- Mary Ziegler's practice location on file with NPPES is 30 N Court St, Westminster, MD 21157-5110.
- What is Mary Ziegler's phone number?
- The practice phone number listed in the NPPES registry for Mary Ziegler is (443) 821-8989.
- Does Mary Ziegler accept Medicare?
- Mary Ziegler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ziegler's NPI active?
- Yes — Mary Ziegler's NPI (1295811644) is active in the NPPES registry as of the last update on 2019-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.