Mark Andrew Siden, DO

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

25MB12659700 Issued in NJ

Practice address

509 S Lenola Rd BLDG 11a
Moorestown, NJ 08057-1561

Phone

(856) 234-0222

Fax

(856) 727-9518

NPI assigned

Apr 29, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Ophthalmology

Education

Philadelphia College of Osteopathic Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Associated Retinal Consultants LLCGroup PAC ID 2961509161, 115 clinicians

Practice addresses (Care Compare)

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: msiden@arcnj.intellechartdirect.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Associated Retinal Consultants LLC

  • Ophthalmology Physician
  • Newark, DE
  • NPI 1164578894

  NJ

  Medicare reassignment Care Compare group NPD
• Associated Retinal Consultants LLC

  dba Millennium Eye Care Englishtown Optical Shop

  • Durable Medical Equipment & Medical Supplies
  • Englishtown, NJ
  • NPI 1295477404
  NPD

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

{
    "created_epoch": "1619654400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755820800000",
    "number": "1679156582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "420 MOUNTAIN AVE FL 4",
            "city": "NEW PROVIDENCE",
            "state": "NJ",
            "postal_code": "079742736",
            "telephone_number": "908-458-8333",
            "fax_number": "908-967-5488"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "509 S LENOLA RD BLDG 11A",
            "city": "MOORESTOWN",
            "state": "NJ",
            "postal_code": "080571561",
            "telephone_number": "856-234-0222",
            "fax_number": "856-727-9518"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIDEN",
        "first_name": "MARK",
        "middle_name": "ANDREW",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-29",
        "last_updated": "2025-08-22",
        "certification_date": "2025-08-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "NJ",
            "license": "25MB12659700",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Paula Sherry, LPC
• Zachary Shirley, M.D.
• Susan A Shore
• Louie Lu Shou, D.P.M.
• Elizabeth Rose Shy, M.D.
• Elisabeth Siegert, MD
• Margaret Siegler
• Nicole Marie Silva, PA-C
• Taylor L Simpkins, CPNP
• Sirov LLC

• Ophthalmology Physician in Moorestown, NJ
• Providers in Moorestown, NJ by specialty
• Ophthalmology Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 22, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.