Elizabeth Williams, MD
NPI 1700052446 · Anesthesiology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Williams, MD is a Anesthesiology Physician provider in Baltimore, MD (NPI 1700052446).
Provider details
- NPI number
- 1700052446
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0086210 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
312 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 137 | $80 |
| Critical Care, First 30-74 Minutes99291 | 91 | $216 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 43 | $43 |
| Anesthesia for Extensive Surgery on Spine00670 | 29 | $595 |
| Anesthesia for Other Procedure on Brain00210 | 12 | $809 |
Typical Medicare-allowed amounts for these services range $43–$809 (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)
- 22 S Greene St Fl 11Baltimore, MD 21201Phone: (667) 214-1616Fax: (410) 328-1674
Registry dates
- Enumerated
- 2008-05-02
- Last updated
- 2019-01-17
Frequently asked questions
- What is Elizabeth Williams's NPI number?
- Elizabeth Williams's National Provider Identifier (NPI) is 1700052446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Williams's specialty?
- Elizabeth Williams is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Williams located?
- Elizabeth Williams's practice location on file with NPPES is 22 S Greene St Fl 11, Baltimore, MD 21201.
- What is Elizabeth Williams's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Williams is (667) 214-1616.
- Does Elizabeth Williams accept Medicare?
- Elizabeth Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Williams's NPI active?
- Yes — Elizabeth Williams's NPI (1700052446) is active in the NPPES registry as of the last update on 2019-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.