WILLIAM M. CHASANOV, II D.O. – NPI #1104028919
Internal Medicine

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

WILLIAM CHASANOV, II is a physician located in LEWES, DE. NPPES has assigned the NPI number 1104028919 to WILLIAM CHASANOV, II on June 04, 2007. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI data, there are 3 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RI0200X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Infectious Disease

The NPI profile was last updated on Feb 09, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for WILLIAM CHASANOV, II below.

NPI Profile for
WILLIAM M. CHASANOV, II

NPI Number
1104028919
Enumeration Date

(more than 19 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
WILLIAM M. CHASANOV, II
Credentials
D.O.
Primary location
1535 SAVANNAH RD
LEWES, DE 19958-1611
Phone: (302) 645-3232 Fax: (302) 645-3198
3 Other location(s):
424 Savannah Rd
Lewes, DE 19958-1462
Phone: (302) 645-3232
Fax: (888) 987-4578
1 Cooper Plz
Camden, NJ 08103
Phone: (856) 963-3518
3 Cooper Plz Rm 513
Camden, NJ 08103-1499
Phone: (856) 963-3715
Mailing address
1515 SAVANNAH RD
LEWES, DE 19958-1675
Phone: (302) 645-3499 Fax: (302) 644-4830
Sole Proprietor
No
Updated
Certification Date
Feb 09, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RI0200X
- Internal Medicine / Infectious Disease (Primary)
DE C7-0003733
207R00000X
- Internal Medicine
DE C7-0003773

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE - Graduated 2007
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
WILLIAM CHASANOV, II is affiliated with the following medical group(s):
  • HOSPITAL
    • BEEBE MEDICAL CENTER
      424 SAVANNAH RD
      LEWES, DE 19958

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