NISARG R DESAI MD
NPI 1174768956
Internal Medicine - Medical Oncology in Rehoboth Beach, DE

Q: What is Nisarg Desai's NPI number?

The NPI number for Nisarg Desai is 1174768956. It was assigned to this individual provider in the NPPES registry on December 9, 2008.

Q: What is Nisarg Desai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Nisarg Desai was last updated on January 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since December 09, 2008PECOS Enrolled

18947 JOHN J WILLIAMS HWY UNIT 101, REHOBOTH BEACH, DE 19971(302) 645-3770(302) 645-5718 Get Directions Write a Review

NPPES record last updated: January 19, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 19, 2026, Jul 21, 2022, Aug 16, 2017 (3 updates tracked since 2017).

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About Nisarg R Desai Md NPPES

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

NISARG R DESAI MD (NPI 1174768956) is an individual medical oncology provider in Rehoboth Beach, Delaware, licensed in Delaware (C1-0011772) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1174768956

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameNISARG R DESAICredential: MD

Location Address18947 JOHN J WILLIAMS HWY UNIT 101Rehoboth Beach, DE 19971-4480

Mailing Address1515 Savannah Rd Fl 2Lewes, DE 19958-1675 · (302) 645-3499 · Fax (302) 644-4830

Phone(302) 645-3770

Fax(302) 645-5718

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateDecember 9, 2008

Last NPPES UpdateJanuary 19, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 19, 2026

✔ NPI 1174768956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in DE · C1-0011772

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License C1-0011772 (DE)

18947 JOHN J WILLIAMS HWY UNIT 101, Rehoboth Beach, DE 19971

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Secondary Practice Locations 2

Location 132750 Roxana RdMillville, DE 19967-6980 · Phone (302) 645-3770 · Fax (302) 645-5718

Location 2424 Savannah RdLewes, DE 19958-1462 · Phone (302) 645-3499 · Fax (302) 644-4830

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nisarg R Desai Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4587890611

PECOS Enrollment IDI20160831000116

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.

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 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.

1,025 services365 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.

353 services286 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.

99 services78 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.

77 services77 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.

24 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19971 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

$173.08 typical visit price

range $57.12 – $173.08

Typical copayment $43.27 (range $14.28 – $43.27)

Most-billed visit code 99205

Established Patient

$100.68 typical visit price

range $18.36 – $141.05

Typical copayment $25.17 (range $4.59 – $35.26)

Most-billed visit code 99214

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.

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

1 supplier13 claims19 services$11.95 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH MARIE WILSON FNP-BC

Nurse Practitioner