Individual provider Active NPI

Marisa Gilstrop Thompson, M.D.

  • Maternal & Fetal Medicine Physician
  • Allentown, PA
National Provider Identifier
1124447685
Registry record updated Jul 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Maternal & Fetal Medicine PhysicianTaxonomy code 207VM0101X
License
MD477851 Issued in PA
Practice address
3900 Hamilton Blvd Ste 201
Allentown, PA 18103-6122
Phone
(484) 664-7555
NPI assigned
Apr 14, 2014
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 15, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X D84948 MD
Maternal & Fetal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207VM0101X C1-0025093 DE
Maternal & Fetal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207VM0101X MD477851 PA Primary

Addresses

Primary practice location

3900 Hamilton Blvd Ste 201
Allentown, PA 18103-6122

Mailing address

2100 Mack Blvd FL 4
Allentown, PA 18103-5622

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DE2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20190801000917 MD Practitioner - Obstetrics/Gynecology 7113144262 Reassigns benefits to 1 organization
I20220721000343 DE Practitioner - Obstetrics/Gynecology 7113144262 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Christiana Care Health Services IncGroup PAC ID 9739097569, 1,480 clinicians

Practice addresses (Care Compare)

1 Centurian Dr
Newark, DE 19713-2127
Phone (302) 319-5680

4701 Ogletown Stanton Rd
Newark, DE 19713-2055
Phone (302) 623-4500

Hospital & facility affiliations

  • Christiana Hospital Hospital, Newark, DE, CCN 080001

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
D84948MDMDObstetrics & Gynecology Physician
C1-0025093DEMDMaternal & Fetal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Christiana Care Health Services Inc Multi-Specialty CurrentSince Jul 10, 2022 Accepting new patients
Christiana Care Health Services, Inc Multi-Specialty Current Accepting new patients
Johns Hopkins University Multi-Specialty Current Accepting new patients
Johns Hopkins University Multi-Specialty CurrentSince Jul 1, 2019 Accepting new patients
Delaware Center for Maternal Fetal Medicine of Christiana Care Multi-Specialty CurrentSince Jul 10, 2022 Accepting new patients
Johns Hopkins University Multi-Specialty CurrentSince Jul 1, 2019 Accepting new patients
Christiana Care Health Services Inc Multi-Specialty CurrentSince Jul 10, 2022 Accepting new patients
Christiana Care Health Services, Inc Multi-Specialty Past Accepting new patients
Christiana Care Health Services Inc Multi-Specialty Past Accepting new patients

Locations

Christiana Hospital Emergency
Newark, DE 19718

4755 Ogletown Stanton Rd
Newark, DE 19718
Phone (302) 733-1700

4701 Ogletown Stanton Rd
Ste 2200
Newark, DE 19713
Phone (302) 366-1200

1 Centurian Dr
Ste 312
Newark, DE 19713
Phone (302) 319-5680

1401 Foulk Rd
Ste 100B
Wilmington, DE 19803
Phone (302) 320-9440

1800 Orleans St
Baltimore, MD 21287
Phone (410) 502-2037

10755 Falls Rd
Timonium, MD 21093
Phone (410) 583-2727

Interoperability endpoints

  • Direct secure messaging: mthompson3333962@direct.trinity-health.org

Organizations & group practices 9

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

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1397433600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1124447685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 MACK BLVD FL 4",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181035622"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3900 HAMILTON BLVD STE 201",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181036122",
            "telephone_number": "484-664-7555"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GILSTROP THOMPSON",
        "first_name": "MARISA",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-04-14",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MD",
            "license": "D84948",
            "primary": false
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "DE",
            "license": "C1-0025093",
            "primary": false
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "PA",
            "license": "MD477851",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Allentown, PA

Sources for this page

Verify at the official NPI Registry.