Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Heidi L Klees-D'Alessandro, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1942292081

Heidi L Klees-D'Alessandro, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Bethlehem, Pennsylvania. Qualified in 2000, 26 years ago. Practices with Anesthesia Specialists of Bethlehem PC, a 284-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
26
Licensed in
PA
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

801 Ostrum St
Bethlehem, PA 18015-1000 Not confirmed with CMS for 13 years — call before visiting
Phone: (610) 954-5810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence RN 313359L (PA)

Record details

NPI number1942292081
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedAugust 16, 2005
Last updated in NPPESJune 7, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Anesthesia Specialists Of Bethlehem Pc — 284 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients227
Services billed 228 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Anesthesia Specialists of Bethlehem PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 284 clinicians in the practice; 12 are shown here.

Other providers in Bethlehem