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

Dan Ryan

Individual provider Certified Registered Nurse Anesthetist · NPI 1659750255

Dan Ryan is registered under Certified Registered Nurse Anesthetist (CRNA) in Boston, Massachusetts. Qualified in 2017, 9 years ago. Practices with Pratt Anesthesiology Associates Inc, a 155-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
9
Licensed in
MA
In the registry since
2015
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Practice location Address checks out

800 Washington St
Boston, MA 02111-1552
Phone: (617) 636-5000
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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 RN2265374 (MA)

Record details

NPI number1659750255
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 28, 2015
Last updated in NPPESJuly 8, 2024
Certification dateJuly 8, 2024

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Pratt Anesthesiology Associates Inc — 155 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 age74

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 Pratt Anesthesiology Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 155 clinicians in the practice; 12 are shown here.

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