DR. DANIEL PATRICK RYAN MD
NPI 1851382733
Surgery - Pediatric Surgery in Boston, MA
About Dr. Daniel Patrick Ryan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DANIEL PATRICK RYAN MD (NPI 1851382733) is an individual pediatric surgery provider in Boston, Massachusetts, licensed in Massachusetts (52328) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Johns Hopkins University School Of Medicine (1979).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Daniel Patrick Ryan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Daniel Ryan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Daniel Ryan's NPI number?
The NPI number for Daniel Ryan is 1851382733. It was assigned to this individual provider in the NPPES registry on October 31, 2005.
Where is Daniel Ryan located?
Daniel Ryan practices at 55 Fruit St Wrn 1121, Boston, MA 02114. The listed phone number is (617) 726-8878.
What is Daniel Ryan's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.
Is Daniel Ryan enrolled in Medicare?
Yes. Daniel Ryan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Daniel Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Ryan reassigns Medicare benefits to 2 organizations: The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Daniel Ryan was last updated on October 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Daniel Patrick Ryan, MD · NPI 1851382733
Pediatric Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 31, 2005.
## Identity
- **NPI:** 1851382733 (Entity type: Individual)
- **Enumerated:** October 31, 2005
- **Primary specialty:** Surgery - Pediatric Surgery · taxonomy 2086S0120X
- **State license:** 52328 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, WRN 1121, Boston, MA 02114-2696
- **Phone:** (617) 726-8878 · **Fax:** (617) 726-2167
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 1979
## Record status
- **NPPES last updated:** October 17, 2026
- **Other identifiers:** Other J02917 (MA); Other 712554 (MA); Medicaid 3023648 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1851382733) · Data from the CMS NPPES public registry.