DIEGO S. ILLANES M.D.
NPI 1568529121
Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery in Milford, MA
About Diego S. Illanes M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIEGO S. ILLANES M.D. (NPI 1568529121) is an individual urogynecology and reconstructive pelvic surgery provider in Milford, Massachusetts, licensed in Massachusetts (235406) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Emerson Hospital -, and maintains a secondary practice location in Fall River.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Diego S. Illanes 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 Diego Illanes reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milford, MA 01757
- Reassigned Medicare billing, Massachusetts enrollment
- 238 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 451 clinicians in this Medicare group
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 93 clinicians in this Medicare group
Fairhaven, MA 02719
- Reassigned Medicare billing, Massachusetts enrollment
- 1,144 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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.
Areas of Expertise CMS Part B claims 26
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Emerson Hospital -
Acute Care Hospitals · W Concord, MAMilford Regional Medical Center
Acute Care Hospitals · Milford, MAPeconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYJohn T Mather Memorial Hospital Of Port Jefferson
Acute Care Hospitals · Port Jefferson, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01757 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Diego Illanes's NPI number?
The NPI number for Diego Illanes is 1568529121. It was assigned to this individual provider in the NPPES registry on January 3, 2007.
Where is Diego Illanes located?
Diego Illanes practices at 115 Water St Ste 105, Milford, MA 01757. The listed phone number is (774) 462-3380.
What is Diego Illanes's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.
Is Diego Illanes enrolled in Medicare?
Yes. Diego Illanes 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 Diego Illanes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diego Illanes reassigns Medicare benefits to 5 organizations: Milford Regional Physician Group, Inc. (Milford, MA), Emerson Practice Associates, Inc. (Concord, MA), Pratt Ob/Gyn Associates, Inc (Boston, MA), Southcoast Physicians Group, Inc. (Fairhaven, MA) and North Shore-Lij Medical PC (Great Neck, NY). 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 Diego Illanes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diego Illanes accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Diego Illanes 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.
Is Diego Illanes affiliated with any hospitals?
According to CMS data, Diego Illanes is affiliated with Emerson Hospital -, Milford Regional Medical Center, Peconic Bay Medical Center and John T Mather Memorial Hospital Of Port Jefferson.
When was this NPI record last updated?
The NPPES record for Diego Illanes was last updated on November 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.