Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARISA GILSTROP THOMPSON M.D.
NPI 1124447685
Obstetrics & Gynecology - Maternal & Fetal Medicine in Allentown, PA

Active since April 14, 2014PECOS Enrolled
3900 HAMILTON BLVD STE 201, ALLENTOWN, PA 18103(484) 664-7555 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 15, 2026, Jan 2, 2024 (2 updates tracked since 2024).

About Marisa Gilstrop Thompson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARISA GILSTROP THOMPSON M.D. (NPI 1124447685) is an individual maternal & fetal medicine provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD477851) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in Newark, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1124447685
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameMARISA GILSTROP THOMPSONCredential: M.D.
Location Address3900 HAMILTON BLVD STE 201Allentown, PA 18103-6122
Mailing Address2100 Mack Blvd Fl 4Allentown, PA 18103-5622
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateApril 14, 2014
Last NPPES UpdateJuly 15, 20262 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
NPI 1124447685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Licenses Licensed in PA · MD477851 Licensed in DE · C1-0025093
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License D84948 (MD)
3900 HAMILTON BLVD STE 201, Allentown, PA 18103

Secondary Practice Location 1

Location 14755 Ogletown Stanton RdNewark, DE 19718-2200 · Phone (302) 733-1042

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Marisa Gilstrop Thompson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113144262
PECOS Enrollment IDI20220721000343
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Genetic Counselor, MS
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Genetic Counselor, MS
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Genetic Counselor, MS
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Genetic Counselor, MS
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Genetic Counselor, MS
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3900 HAMILTON BLVD STE 201
ALLENTOWN, PA 18103

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marisa Gilstrop Thompson's NPI number?

The NPI number for Marisa Gilstrop Thompson is 1124447685. It was assigned to this individual provider in the NPPES registry on April 14, 2014.

Where is Marisa Gilstrop Thompson located?

Marisa Gilstrop Thompson practices at 3900 Hamilton Blvd Ste 201, Allentown, PA 18103. The listed phone number is (484) 664-7555.

What is Marisa Gilstrop Thompson's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Marisa Gilstrop Thompson enrolled in Medicare?

Yes. Marisa Gilstrop Thompson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Marisa Gilstrop Thompson accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Marisa Gilstrop Thompson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marisa Gilstrop Thompson was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.