John L Zapas, M.D.

Surgery · Frederick, MD

Call (301) 663-9573 Directions

At a glance

501 W 7Th St, Frederick, MD 21701-4586

Published activity: Hernia repair (minimally invasive) · Melanoma (skin cancer) excision. View counts and coverage

NPPES record updated Jun 10, 2025. Public records can lag behind changes at a practice.

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  • Are you accepting new patients?
  • Do you accept my specific insurance plan?
  • Do you provide the service I need at this address?
  • Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

501 W 7Th St
Frederick, MD 21701-4586

Additional reported practice locations

7211 Bank Ct
Suite 200
Frederick, MD 217038483
Phone: 2405752526
424 Savannah Rd
Lewes, DE 199581462
Phone: 3027033630
Fax: 3026458473
19161 Healthy Way
Rehoboth Beach, DE 199714491
Phone: 3027033630
Fax: 3026458473
18941 John J Williams Hwy
Rehoboth Beach, DE 199714404
Phone: 3027033630
Fax: 3026458473
33672 Bayview Medical Dr Fl 1
Lewes, DE 199581687
Phone: 3027033630
Fax: 3026458473
REPORTED BACKGROUND

Education & affiliations

Medical / professional school
University Of Maryland School Of Medicine
Graduation year
1991
CMS specialties
General Surgery

Practice groups

Reported hospital affiliations

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

Procedure categoryPublished Medicare activity
Hernia repair (minimally invasive)1-10
Melanoma (skin cancer) excision14

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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PAYMENT TRANSPARENCY

Industry-reported general payments

$1,357.37General payments · 2025
7Reported transactions
3Reporting companies

Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.

See payment purposes and reporting companies

Reported purposes

PurposeAmount
Food and beverage$889.41
Travel and lodging$467.96

Reporting companies

CompanyAmount
INTUITIVE SURGICAL, INC.$1,167.15
BOSTON SCIENTIFIC CORPORATION$149.84
MEDTRONIC, INC.$40.38
View official Open Payments profile ↗

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record
NPI1487613022
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Registry details

Primary taxonomy
Surgery
Taxonomy code
208600000X
Enumeration date
Mar 22, 2006
Record updated
Jun 10, 2025
More registry details
Provider type
Individual · Type 1
Reported credentials
M.D.

Reported taxonomies and licenses

Surgery

208600000X

License reported: D0044227 MD

Surgery

208600000X · Primary

License reported: C1-0028199 DE

License numbers and credentials are reported to NPPES; HCPList does not independently verify them.

Practice location

501 W 7Th St
Frederick, MD 21701-4586
Phone
(301) 663-9573
Mailing address
1515 SAVANNAH RD

LEWES, DE 199581675
Source: NPPES Source through Oct 18, 2026An NPI does not verify licensure or credentials.

Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.

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