DIEGO S. ILLANES M.D.
NPI 1568529121
Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery in Milford, MA

Active since January 03, 2007PECOS EnrolledAccepts Medicare Assignment
115 WATER ST STE 105, MILFORD, MA 01757(774) 462-3380(508) 473-1027 Get Directions Write a Review

NPPES record last updated: November 8, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 8, 2024, Aug 16, 2022, Jul 21, 2022 and 2 more (5 updates tracked since 2017).

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

NPI1568529121
Entity TypeIndividualMale
Primary Taxonomy207VF0040X
Provider Legal NameDIEGO S. ILLANESCredential: M.D.
Location Address115 WATER ST STE 105Milford, MA 01757-3015
Mailing Address9 Industrial Rd Ste 5Milford, MA 01757-3736 · (508) 473-1480
Fax(508) 473-1027
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJanuary 3, 2007
Last NPPES UpdateNovember 8, 20245 updates tracked since enumeration
NPPES CertifiedNovember 8, 2024
✔ NPI 1568529121 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Urogynecology and Reconstructive Pelvic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207VF0040X
License✔ Licensed in MA · 235406
Definition
A subspecialist in Urogynecology and Reconstructive Pelvic Surgery is a physician in Urology or Obstetrics and Gynecology who, by virtue of education and training, is prepared to provide consultation and comprehensive management of women with complex benign pelvic conditions, lower urinary tract disorders, and pelvic floor dysfunction. Comprehensive management includes those diagnostic and therapeutic procedures necessary for the total care of the patient with these conditions and complications resulting from them.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 235406 (MA)
115 WATER ST STE 105, Milford, MA 01757

Secondary Practice Location 1

Location 11601 S Main StFall River, MA 02724-2107 · Phone (508) 678-0004 · Fax (508) 678-6970

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.

PECOS PAC ID4082748371
PECOS Enrollment IDI20100823000944, I20250610002443
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare 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.

Cardiovascular Disease
308 MAIN ST
Milford, MA 01757
  • Reassigned Medicare billing, Massachusetts enrollment
  • 238 clinicians in this Medicare group
Internal Medicine
133 OLD ROAD TO NINE ACRE CORNER
Concord, MA 01742
  • Reassigned Medicare billing, Massachusetts enrollment
  • 451 clinicians in this Medicare group
Obstetrics & Gynecology
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 93 clinicians in this Medicare group
Emergency Medicine
208 MILL RD
Fairhaven, MA 02719
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,144 clinicians in this Medicare group
Urology
1010 NORTHERN BLVD STE 110
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.

Injection, onabotulinumtoxina, 1 unit J0585
Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.
2,205 services11 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
155 services120 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
106 services106 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
102 services84 patients
Electronic assessment of bladder emptying 51741
Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.
49 services47 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
43 services33 patients

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, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220084
Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · Middlesex County
Emergency services Birthing friendly

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220090
Location14 Prospect StreetMilford, MA 01757 · Worcester County
Emergency services Birthing friendly

Peconic Bay Medical Center

Acute Care Hospitals · Riverhead, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330107
Location1 Heros WayRiverhead, NY 11901 · Suffolk County
Emergency services Birthing friendly

John T Mather Memorial Hospital Of Port Jefferson

Acute Care Hospitals · Port Jefferson, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330185
Location75 North Country RoadPort Jefferson, NY 11777 · Suffolk County
Emergency services

Physician 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.

New Patient
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351
DME-Orthotic Devices · category DF008N
3 suppliers15 claims3,450 services$1.75 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.