Hazel Werlhof, M.D.
NPI 1215236773 · Anesthesiology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hazel Werlhof, M.D. is a Anesthesiology Physician provider in Philadelphia, PA (NPI 1215236773).
Provider details
- NPI number
- 1215236773
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD454348 (PA)
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
15 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
270 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 | 133 | $215 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 38 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 27 | $120 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 18 | $44 |
| Anesthesia for Procedure to Assess Heart Electrical Activity00537 | 15 | $231 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 15 | $239 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-23
- Last updated
- 2019-10-24
Frequently asked questions
- What is Hazel Werlhof's NPI number?
- Hazel Werlhof's National Provider Identifier (NPI) is 1215236773, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hazel Werlhof's specialty?
- Hazel Werlhof is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Hazel Werlhof located?
- Hazel Werlhof's practice location on file with NPPES is 3400 Civic Center Blvd, Philadelphia, PA 19104-5127.
- What is Hazel Werlhof's phone number?
- The practice phone number listed in the NPPES registry for Hazel Werlhof is (215) 349-8310.
- Does Hazel Werlhof accept Medicare?
- Hazel Werlhof is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hazel Werlhof's NPI active?
- Yes — Hazel Werlhof's NPI (1215236773) is active in the NPPES registry as of the last update on 2019-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.