Individual provider Active NPI

Mark J Stamm, MD

  • Ophthalmology Physician
  • Lewes, DE
National Provider Identifier
1922082387
Registry record updated Jul 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
License
C1-0027102 Issued in DE
Practice address
28185 Celestial Way
Lewes, DE 19958
Phone
(914) 283-9027
Fax
(845) 294-1479
NPI assigned
Nov 30, 2005
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 28, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology Physician 207W00000X C1-0027102 DE Primary

Addresses

Primary practice location

28185 Celestial Way
Lewes, DE 19958

Mailing address

PO Box 73
Nassau, DE 19969
Phone (914) 283-9027

Other identifiers 1

IdentifierTypeStateIssuer
000607658MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

Care Compare profile

Medicare Care Compare

Merit-based Incentive Payment System (MIPS)

Final score
84.3 of 100Reported as group
Quality
86.67
Improvement activities
40
Cost
65.44

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
C1-0027102DEMDOphthalmology Physician

Interoperability endpoints

  • Direct secure messaging: mark.stamm.p1@direct.epocny.nextgenshare.com

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1133308800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1922082387",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 73",
            "city": "NASSAU",
            "state": "DE",
            "postal_code": "19969",
            "telephone_number": "914-283-9027",
            "fax_number": "845-294-1479"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "28185 CELESTIAL WAY",
            "city": "LEWES",
            "state": "DE",
            "postal_code": "19958",
            "telephone_number": "914-283-9027",
            "fax_number": "845-294-1479"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STAMM",
        "first_name": "MARK",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-30",
        "last_updated": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "DE",
            "license": "C1-0027102",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "000607658",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Lewes, DE

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.