REGINA CAROLINE DAY PA-C
NPI 1720747850
Physician Assistant in Philadelphia, PA

Q: What is Regina Day's NPI number?

The NPI number for Regina Day is 1720747850. It was assigned to this individual provider in the NPPES registry on December 16, 2021.

Q: What is Regina Day's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Regina Day was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 December 16, 2021PECOS EnrolledAccepts Medicare Assignment

333 COTTMAN AVE, PHILADELPHIA, PA 19111(215) 728-2191(215) 214-3992 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 15, 2025, Dec 16, 2021 (2 updates tracked since 2021).

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About Regina Caroline Day Pa-c NPPES

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

REGINA CAROLINE DAY PA-C (NPI 1720747850) is an individual physician assistant in Philadelphia, Pennsylvania and active in the NPI registry since December 2021. She is enrolled in Medicare PECOS, is affiliated with Temple University Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1720747850

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameREGINA CAROLINE DAYCredential: PA-C

Location Address333 COTTMAN AVEPhiladelphia, PA 19111-2434

Mailing Address3500 N Broad StPhiladelphia, PA 19140-4106 · (215) 707-2433

Phone(215) 728-2191

Fax(215) 214-3992

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateDecember 16, 2021

Last NPPES UpdateSeptember 15, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2025

✔ NPI 1720747850 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

333 COTTMAN AVE, Philadelphia, PA 19111

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Secondary Practice Locations 3

Location 12180 Henry Tecklenburg DrCharleston, SC 29414-5798 · Phone (843) 556-8886

Location 21364 Ashley River RdCharleston, SC 29407-5347 · Phone (843) 556-8886

Location 3208 Brighton Park BlvdSummerville, SC 29486-3000 · Phone (843) 556-8886

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Regina Caroline Day Pa-c 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 ID446647192

PECOS Enrollment IDI20240402001601, I20250925004671

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.

Areas of Expertise CMS Part B claims 12

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.

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

2,580 services454 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.

1,494 services869 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

765 services588 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

460 services385 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

230 services184 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

181 services123 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.

117 services99 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

88 services88 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

55 services43 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

25 services24 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

25 services25 patients

Biopsy of ear 69100

A biopsy of the ear is a medical procedure where a small sample of tissue is taken from your ear for examination. This helps doctors diagnose any abnormalities or diseases. It's a simple process, usually done under local anesthesia, and has minimal risks.

16 services16 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Temple University Hospital

Acute Care Hospitals · Philadelphia, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390027

Location3401 North Broad StreetPhiladelphia, PA 19140 · Philadelphia County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19111 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

$92.69 typical visit price

range $59.88 – $180.99

Typical copayment $23.17 (range $14.97 – $45.24)

Most-billed visit code 99203

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

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 20

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

FOX CHASE CANCER CENTER MEDICAL GROUP, INC.

Anesthesiology

333 COTTMAN AVE, MED STAFF OFFICE
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-6900

JAMES SUN MD

Surgery (Surgical Oncology)

333 COTTMAN AVE
PHILADELPHIA, PA 19111

Philadelphia County (215) 854-9799

MS. MALA T KAILASAM MD

Internal Medicine

333 COTTMAN AVE, FOX CHASE CANCER CENTER
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-6900

HEALTH SERVICES OF FOX CHASE CANCER CTR.

Radiology (Diagnostic Radiology)

333 COTTMAN AVE, RADIOLOGY ASSOCIATES OF FCCC
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-6900

ELENA DREYZIN PA-C

Physician Assistant

333 COTTMAN AVE
PHILADELPHIA, PA 19111

Philadelphia County (888) 369-2427

FREWEINI TESFALEDET PA

Physician Assistant

333 COTTMAN AVE
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-6900

MARIUSZ A WASIK MD

Pathology (Anatomic Pathology)

333 COTTMAN AVE
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-3675

DR. BARBARA C. CAVANAUGH M.D.

Radiology (Diagnostic Radiology)

333 COTTMAN AVE
PHILADELPHIA, PA 19111

Philadelphia County (215) 728-3883

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 Regina Day's NPI number?

The NPI number for Regina Day is 1720747850. It was assigned to this individual provider in the NPPES registry on December 16, 2021.

Where is Regina Day located?

Regina Day practices at 333 Cottman Ave, Philadelphia, PA 19111. The listed phone number is (215) 728-2191.

What is Regina Day's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Regina Day enrolled in Medicare?

Yes. Regina Day 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 Regina Day accept?

Health plans from UnitedHealthcare list Regina Day 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.

Is Regina Day affiliated with any hospitals?

According to CMS data, Regina Day is affiliated with Temple University Hospital.

When was this NPI record last updated?

The NPPES record for Regina Day was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.