Sarah Williams, M.D.
NPI 1326433145 · Critical Care Medicine (Internal Medicine) Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Williams, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Baltimore, MD (NPI 1326433145).
Provider details
- NPI number
- 1326433145
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D87902 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Pulmonary Disease Physician207RP1001X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 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
518 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 107 | $231 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 64 | $139 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 62 | $85 |
| Test to Measure Expiratory Airflow and Volume94010 | 59 | $30 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 39 | $129 |
| Test to Determine Lung Volumes Using Sensors94726 | 35 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 41 | 16 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 34 | — |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 29 | — |
| Prednisone | 28 | — |
| Mycophenolate Mofetil | 27 | — |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-03-30
- Last updated
- 2021-08-16
- Certified
- 2021-08-16
Frequently asked questions
- What is Sarah Williams's NPI number?
- Sarah Williams's National Provider Identifier (NPI) is 1326433145, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Williams's specialty?
- Sarah Williams is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Williams located?
- Sarah Williams's practice location on file with NPPES is 22 S Greene St, Baltimore, MD 21201-1590.
- What is Sarah Williams's phone number?
- The practice phone number listed in the NPPES registry for Sarah Williams is (410) 328-8141.
- Does Sarah Williams accept Medicare?
- Sarah Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Williams's NPI active?
- Yes — Sarah Williams's NPI (1326433145) is active in the NPPES registry as of the last update on 2021-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.