DR. LYDIA L SHOOK M.D.
NPI 1629414511
Obstetrics & Gynecology in Boston, MA
About Dr. Lydia L Shook M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LYDIA L SHOOK M.D. (NPI 1629414511) is an individual obstetrics & gynecology provider in Boston, Massachusetts, licensed in Massachusetts (273898) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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. Lydia L Shook M.d. 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
5Medicare enrollment records show Lydia Shook reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 206 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 172 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Lydia Shook's NPI number?
The NPI number for Lydia Shook is 1629414511. It was assigned to this individual provider in the NPPES registry on May 17, 2013.
Where is Lydia Shook located?
Lydia Shook practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-4042.
What is Lydia Shook's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Lydia Shook enrolled in Medicare?
Yes. Lydia Shook 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 Lydia Shook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Shook reassigns Medicare benefits to 5 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), Nantucket Cottage Hospital (Nantucket, MA) and Nantucket Physicians Organization (Nantucket, 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 Lydia Shook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lydia Shook accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Lydia Shook as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Lydia Shook was last updated on August 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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. Lydia L Shook, M.D. · NPI 1629414511
Obstetrics & Gynecology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 17, 2013.
## Identity
- **NPI:** 1629414511 (Entity type: Individual)
- **Enumerated:** May 17, 2013
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 273898 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2696
- **Phone:** (617) 724-4042
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Mass General Brigham Medical Group Western Massachusetts Inc (NPI 1295787919, Northampton, MA); Nantucket Cottage Hospital (NPI 1447214622, Nantucket, MA); Nantucket Physicians Organization (NPI 1568798510, Nantucket, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** August 19, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1629414511) · Data from the CMS NPPES public registry.