RAGAVAN VIGNESH SIDDHARTHAN M.D.
NPI 1841686441
Surgery in Seattle, WA

Q: What is Ragavan Siddharthan's NPI number?

The NPI number for Ragavan Siddharthan is 1841686441. It was assigned to this individual provider in the NPPES registry on April 9, 2015.

Q: What is Ragavan Siddharthan's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Active since April 09, 2015PECOS EnrolledAccepts Medicare Assignment

825 EASTLAKE AVE E, SEATTLE, WA 98109(206) 520-5000 Get Directions Write a Review

NPPES record last updated: August 15, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 15, 2024, Aug 24, 2022 (2 updates tracked since 2022).

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About Ragavan Vignesh Siddharthan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RAGAVAN VIGNESH SIDDHARTHAN M.D. (NPI 1841686441) is an individual surgery provider in Seattle, Washington, licensed in Washington (MD61574196) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Emory University School Of Medicine (2015).

NPPES Registry Identity

NPI1841686441

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameRAGAVAN VIGNESH SIDDHARTHANCredential: M.D.

Location Address825 EASTLAKE AVE ESeattle, WA 98109-4405

Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700

Phone(206) 520-5000

Sole ProprietorNo

Medical School CMSEmory University School Of MedicineGraduated 2015

Enumeration DateApril 9, 2015

Last NPPES UpdateAugust 15, 20242 updates tracked since enumeration

NPPES CertifiedAugust 15, 2024

✔ NPI 1841686441 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in WA · MD61574196

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedColon & Rectal SurgeryTaxonomy 208C00000X · License MD61574196 (WA)

825 EASTLAKE AVE E, Seattle, WA 98109

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Ragavan Vignesh Siddharthan 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 ID9032426200

PECOS Enrollment IDI20240808002817

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

Medicare enrollment records show Ragavan Siddharthan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Association Of University Physicians

1.5 mi

Anesthesiology

701 5TH AVE, SUITE 700
Seattle, WA 98104

Reassigned Medicare billing, Washington enrollment
4,364 clinicians in this Medicare group

NPI 1023041159 (206) 543-6420

St. Peter's Health Partners Medical Associates, P.C.

2,344 mi

Cardiovascular Disease

6 CARE LN, SARATOGA CARDIOLOGY ASSOCIATES
Saratoga Springs, NY 12866

Reassigned Medicare billing, New York enrollment
742 clinicians in this Medicare group

NPI 1821419656 (518) 587-7625

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 5

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.

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.

30 services23 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

20 services15 patients

Diagnostic exam of anus using an endoscope 46600

This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.

18 services16 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

15 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number500008

Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98109 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

$97.43 typical visit price

range $63.67 – $189.37

Typical copayment $24.35 (range $15.91 – $47.34)

Most-billed visit code 99203

Established Patient

$78.74 typical visit price

range $21.12 – $155.00

Typical copayment $19.68 (range $5.28 – $38.75)

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.

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.

SANDHYA RAMANATHAN PANCH M.D.

Internal Medicine (Hematology)