KRISHNA VAIDYANATHAN IYER (M.D.) – Vascular & Interventional Radiology Physician, NPI 1003837634

KRISHNA VAIDYANATHAN IYER (M.D.) is a healthcare provider. based in Worcester, Massachusetts. specializing in INTERVENTIONAL RADIOLOGY, DIAGNOSTIC RADIOLOGY. They hold the professional credentials M.D.. They hold a License No. 223740 (MA). The NPI Number for KRISHNA VAIDYANATHAN IYER (M.D.) is 1003837634

Main info

Male
27 Years Of Experience
Name
KRISHNA VAIDYANATHAN IYER (M.D.)
NPI
1003837634
Phone
(508) 334-1000
Address
55 Lake Ave N
Enumeration Date
21 July 2006
Last Update Date
8 April 2026

Doctor Profile

Medical School Name
RUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Secondary Phone
9079662411
Graduation Year
1999 (27 years ago)
PAC ID
5395741326
Group Practice PAC ID
1456265362
Professional Enrollment ID
I20251124001401
Address ID
AK998359416SI222XXDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience81
Completeness85
Years active:19State licenses:2Digital endpointsOther names

188 INTERVENTIONAL RADIOLOGY in MA

Provider Addresses for KRISHNA VAIDYANATHAN IYER (M.D.)

  • 55 Lake Ave N

    Worcester, MA 01655

    Phone: (508) 334-1000

    Type: Location

  • 88 Washington St

    Taunton, MA 027802465

    Phone: (508) 828-7000

    Fax: (508) 828-7158

    Type: Location

  • 3600 MINNESOTA DR STE 800

    EDINA, MN 554357915

    Phone: (952) 595-1100

    Type: Mailing

  • UMASS Memorial Medical Center University Campus Hospital, 55, Lake Avenue North, Worcester, Worcester County, Massachusetts, 01653, United States

    WORCESTER, MA 016550002

    Phone: (508) 334-1000

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $121.

Total Amount is formed as General ($121) + Research ($0) + Ownership ($0) = $121.

Last reported payment date: 2023-12-14 • Largest payer in this snapshot: Telix Pharmaceuticals ($121).

Total Amount

$121

General + Research + Ownership

Payments

1

Total payment records

General Amount

$121

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-12-14

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Telix Pharmaceuticals$121
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2026-02-18

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 5 Medicare enrollment records; no due dates published yet.

Enrollment records

5

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20110309000343IDiagnostic RadiologyFLTBD
I20200804000537IDiagnostic RadiologyMATBD
I20251124001401IDiagnostic RadiologyTXTBD
I20251216004190IDiagnostic RadiologyMITBD
I20260218003325IDiagnostic RadiologyMETBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
Q9967Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml1,15013$0
71045X-ray of chest, 1 view1,025869$0
71046X-ray of chest, 2 views823777$0
77067Screening mammography569569$0
70450Ct scan head or brain without contrast296289$0
View full utilization report →

Insurance plans in this area (ZIP 01655)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1456265362View full group profile

Reviews

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Frequently asked questions

What NPI should I save for KRISHNA VAIDYANATHAN IYER (M.D.)?
Save NPI 1003837634 if you need a stable reference for KRISHNA VAIDYANATHAN IYER (M.D.).
Is KRISHNA VAIDYANATHAN IYER (M.D.)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What field does KRISHNA VAIDYANATHAN IYER (M.D.) work in?
You can think of KRISHNA VAIDYANATHAN IYER (M.D.) as practicing within Vascular & Interventional Radiology Physician. Clinical services aligned with this taxonomy classification.
Where is KRISHNA VAIDYANATHAN IYER (M.D.)'s primary listing?
We display Worcester, Massachusetts because that is what the record indicates for KRISHNA VAIDYANATHAN IYER (M.D.).
What if Worcester, Massachusetts seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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