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ERIN UNDERHILL PA
NPI 1841629318
Physician Assistant in Dobbs Ferry, NY

Active since November 05, 2013PECOS EnrolledAccepts Medicare Assignment
128 ASHFORD AVE FL 2, DOBBS FERRY, NY 10522(914) 693-6500 Get Directions Write a Review

NPPES record last updated: October 17, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Erin Underhill Pa NPPES

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

ERIN UNDERHILL PA (NPI 1841629318) is an individual physician assistant in Dobbs Ferry, New York, licensed in New York (017104) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS, is affiliated with St John's Riverside Hospital, and maintains a secondary practice location in Yonkers.

NPPES Registry Identity

NPI1841629318
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameERIN UNDERHILLCredential: PA
Location Address128 ASHFORD AVE FL 2Dobbs Ferry, NY 10522-1924
Mailing Address967 N BroadwayYonkers, NY 10701-1301 · (914) 964-4444 · Fax (914) 966-9793
Phone(914) 693-6500
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateNovember 5, 2013
Last NPPES UpdateOctober 17, 2024
NPPES CertifiedOctober 17, 2024
✔ NPI 1841629318 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in NY · 017104
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.
128 ASHFORD AVE FL 2, Dobbs Ferry, NY 10522
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Secondary Practice Location 1

Location 173 Market StYonkers, NY 10710-7616 · Phone (914) 831-4160 · Fax (914) 831-4161

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

Erin Underhill Pa 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 ID2163651894
PECOS Enrollment IDI20140129001192
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 5

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.

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611
This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.
40 services33 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.
36 services34 patients
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose J7324
Orthovisc is a treatment involving injections of a substance called hyaluronan into your joints. Hyaluronan is a natural substance in your joint fluid that aids in movement and reduces pain. The Orthovisc injections help replenish this substance, relieving joint pain.
34 services17 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.
19 services18 patients
Injection, methylprednisolone acetate, 40 mg J1030
Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.
12 services11 patients

Hospital Affiliations CMS Care Compare

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

St John's Riverside Hospital

Acute Care Hospitals · Yonkers, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330208
Location976 North BroadwayYonkers, NY 10701 · Westchester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10522 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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.

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 Erin Underhill's NPI number?

The NPI number for Erin Underhill is 1841629318. It was assigned to this individual provider in the NPPES registry on November 5, 2013.

Where is Erin Underhill located?

Erin Underhill practices at 128 Ashford Ave Fl 2, Dobbs Ferry, NY 10522. The listed phone number is (914) 693-6500.

What is Erin Underhill's specialty?

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

Is Erin Underhill enrolled in Medicare?

Yes. Erin Underhill 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.

Is Erin Underhill affiliated with any hospitals?

According to CMS data, Erin Underhill is affiliated with St John's Riverside Hospital.

When was this NPI record last updated?

The NPPES record for Erin Underhill was last updated on October 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.