Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Lillian Penniman Chisholm, CRNA

Individual provider Registered Nurse · NPI 1861085615

Lillian Penniman Chisholm, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Cooperstown, New York. Qualified in 2021, 5 years ago. Practices with Mary Imogene Bassett Hospital, a 779-clinician group, works from 7 locations and accepts Medicare assignment. Licensed in Maine and New York.

Years since qualifying
5
Licensed in
ME, NY
In the registry since
2021
Specialties on file
3
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

1 Atwell Rd
Cooperstown, NY 13326-1301
Phone: (607) 547-3456
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (6)

  • 1 Medical Center Dr, Biddeford, ME 04005-9422 — (207) 283-7042
  • 335 Brighton Ave, Portland, ME 04102-2363 — (207) 662-8000
  • 22 Bramhall St, Portland, ME 04102-3134 — (207) 662-2526
  • 25 June St, Sanford, ME 04073-2621 — (207) 490-7450
  • 100 Campus Dr Unit 113, Scarborough, ME 04074-7172 — (207) 396-7750
  • 84 Campus Dr, Scarborough, ME 04074-7133 — (207) 396-7000

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 633799-1 (NY)
Registered Nurse Taxonomy 163W00000X · Licence 633799-1 (NY)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence RNA253052 (ME)

Record details

NPI number1861085615
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedFebruary 12, 2021
Last updated in NPPESMarch 23, 2026
Certification dateMarch 23, 2026

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Mary Imogene Bassett Hospital — 779 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients135
Services billed 135 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Mary Imogene Bassett Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 779 clinicians in the practice; 12 are shown here.

Other providers in Cooperstown