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

STEPHANIE ENG M.D.
NPI 1851657456
Allergy & Immunology in Horsham, PA

Q: What is Stephanie Eng's NPI number?

The NPI number for Stephanie Eng is 1851657456. It was assigned to this individual provider in the NPPES registry on April 9, 2012.

Q: What is Stephanie Eng's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Stephanie Eng was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.

Active since April 09, 2012PECOS EnrolledAccepts Medicare Assignment

400 HORSHAM RD STE 106, HORSHAM, PA 19044(215) 659-5480(215) 659-5482 Get Directions Write a Review

NPPES record last updated: September 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 25, 2026, Mar 10, 2025 (2 updates tracked since 2025).

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About Stephanie Eng M.d. NPPES

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

STEPHANIE ENG M.D. (NPI 1851657456) is an individual allergy & immunology provider in Horsham, Pennsylvania, licensed in Pennsylvania (MD456143) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and is a graduate of Temple University School Of Medicine (2012).

NPPES Registry Identity

NPI1851657456

Entity TypeIndividualFemale

Primary Taxonomy207K00000X

Provider Legal NameSTEPHANIE ENGCredential: M.D.

Location Address400 HORSHAM RD STE 106Horsham, PA 19044-2146

Mailing Address660 White Plains Rd Ste 400Tarrytown, NY 10591-5107

Phone(215) 659-5480

Fax(215) 659-5482

Sole ProprietorNo

Medical School CMSTemple University School Of MedicineGraduated 2012

Enumeration DateApril 9, 2012

Last NPPES UpdateSeptember 25, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 25, 2026

✔ NPI 1851657456 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in PA · MD456143

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedPediatricsTaxonomy 208000000X · License MD456143 (PA)

400 HORSHAM RD STE 106, Horsham, PA 19044

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephanie Eng 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 ID1557671237

PECOS Enrollment IDI20210126002496

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.

Medicare Billing Reassignment

Medicare enrollment records show Stephanie Eng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ent And Allergy Associates Of Pennsylvania PLLC

Same address

Allergy & Immunology

400 HORSHAM RD STE 106
Horsham, PA 19044

Reassigned Medicare billing, Pennsylvania enrollment
8 clinicians in this Medicare group

NPI 1548098759 (215) 659-5480

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

939 services18 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

210 services67 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

201 services16 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

77 services57 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

68 services18 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

31 services21 patients

Other Providers at the Same Location NPPES 5

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

SHEENAL V. PATEL MD

Allergy & Immunology