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ABBY L ALLEN FNP
NPI 1497999171
Nurse Practitioner - Family in Georgetown, DE

Active since April 27, 2009PECOS Enrolled
20797 PROFESSIONAL PARK BLVD, GEORGETOWN, DE 19947(302) 856-1773(302) 756-7817 Get Directions Write a Review

NPPES record last updated: September 1, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Abby L Allen Fnp NPPES

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

ABBY L ALLEN FNP (NPI 1497999171) is an individual family provider in Georgetown, Delaware, licensed in Delaware (LG-0000493) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497999171
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameABBY L ALLENCredential: FNP
Location Address20797 PROFESSIONAL PARK BLVDGeorgetown, DE 19947-3198
Mailing Address201 Pine Bluff Rd, 28Salisbury, MD 21801-7163 · (410) 742-5599 · Fax (410) 742-4873
Phone(302) 856-1773
Fax(302) 756-7817
Sole ProprietorNo
Enumeration DateApril 27, 2009
Last NPPES UpdateSeptember 1, 2015
✔ NPI 1497999171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in DE · LG-0000493
Also ListedNurse PractitionerTaxonomy 363L00000X · License AC-000690 (MD)
20797 PROFESSIONAL PARK BLVD, Georgetown, DE 19947
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Other Names 1

Former Name (1)Abby L Cordrey-allen

Other Identifiers 2

OtherMA2170277MD · State Of Maryland
OtherLG-0000493DE · State Of Delaware

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Abby L Allen Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Abby Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Peninsula Allergy & Asthma Associates P A
27 mi
Allergy & Immunology
201 PINE BLUFF ROAD, SUITE 28
Salisbury, MD 21801
  • Reassigned Medicare billing, Delaware enrollment
  • Medicare enrollment name: Peninsula Allergy & Asthma Associates PA
  • 9 clinicians in this Medicare group
NPI 1912056243 (410) 742-5599

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 9

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.

Injection, omalizumab, 5 mg J2357
Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.
3,465 services18 patients
Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
506 services23 patients
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.
460 services12 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.
282 services65 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.
129 services23 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19947 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
$88.37 typical visit price
range $57.12 – $173.08
Typical copayment $22.09 (range $14.28 – $43.27)
Most-billed visit code 99203
Established Patient
$100.68 typical visit price
range $18.36 – $141.05
Typical copayment $25.17 (range $4.59 – $35.26)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
2 suppliers11 claims11 services$46.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

CNS OCCUPATIONAL MEDICINE OF DELAWARE
Clinic/Center (Occupational Medicine)
20797 PROFESSIONAL PARK BLVD
GEORGETOWN, DE 19947
Sussex County (302) 515-1708
CNS OCCUPATIONAL MEDICINE OF DELAWARE
Clinic/Center (Urgent Care)
20797 PROFESSIONAL PARK BLVD
GEORGETOWN, DE 19947
Sussex County (302) 515-1708

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 Abby Allen's NPI number?

The NPI number for Abby Allen is 1497999171. It was assigned to this individual provider in the NPPES registry on April 27, 2009. The provider is also known as Abby L Cordrey-Allen.

Where is Abby Allen located?

Abby Allen practices at 20797 Professional Park Blvd, Georgetown, DE 19947. The listed phone number is (302) 856-1773.

What is Abby Allen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Abby Allen enrolled in Medicare?

Yes. Abby Allen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Abby Allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Abby Allen reassigns Medicare benefits to Peninsula Allergy & Asthma Associates P A (Salisbury, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Abby Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Abby Allen was last updated on September 1, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.