Erin Underhill, PA
- Medicare services, 2024
- 752
- Medicare patients, 2024
- 70
- Part D claims, 2024
- 85
- Hospital affiliations
- 1
- Industry payments
- $21
- Practice address
- 2 Park Ave, Yonkers, NY 10703
- Practice phone
- Call (914) 207-0004
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St John's Riverside Hospital Parkcare Pavillion
Yonkers, New York
Find Erin Underhill's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Erin Underhill is a physician assistant in Yonkers, New York
Erin Underhill practices at St John's Riverside Hospital Parkcare Pavillion in Yonkers, New York.
Erin Underhill's NPI, 1841629318, was assigned on November 5, 2013. Erin Underhill holds New York license 017104.
- NPI
- 1841629318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163651894
- NPI enumeration date
- November 5, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 207-0004
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Erin Underhill practices at St John's Riverside Hospital Parkcare Pavillion in Yonkers, New York
Erin Underhill's primary practice is St John's Riverside Hospital Parkcare Pavillion, at 2 Park Ave, Yonkers, NY 10703 in Westchester County. The practice phone is (914) 207-0004.
- St John's Riverside Hospital Parkcare Pavillion2 Park Ave, Yonkers, NY 10703 · Westchester CountyPhone(914) 207-0004
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Erin Underhill is affiliated with 3 sites of care and 1 medical group
Erin Underhill's primary practice is St John's Riverside Hospital Parkcare Pavillion in Yonkers, New York. Erin Underhill is also affiliated with St. John's Riverside Hospital. The medical group on file is SJR Medical, PC. Dmand AI also links Erin Underhill to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Erin Underhill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erin Underhill practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St John's Riverside Hospital Parkcare Pavillion | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Erin Underhill is one of 11,456 physician assistants in New York
Physician assistant is Erin Underhill's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Erin Underhill is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Erin Underhill is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Clinical focus
Dmand AI lists arthritis, bursitis, carpal tunnel syndrome, fibromyalgia and chronic pain, fluid in a joint, gout, hand joint or tendon inflammation and joint pain among the conditions Erin Underhill treats.
Physician assistants near Erin Underhill
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Erin Underhill billed Medicare for 752 services in 2024
CMS data shows 752 Medicare services from Erin Underhill across 6 procedure codes in 2024, for 70 Medicare patients. Medicare paid $11,463 for them. Every service was in an office.
Erin Underhill's Medicare services by type, 2024
- Drugs given in the office657
- Office and hospital visits55
- Surgery40
Erin Underhill compared with the New York median for physician assistants, 2024
- Erin Underhill
- New York median
- Medicare services
- 752vs 1764.3 times
- Medicare patients
- 70vs 7810% below
- Part D claims
- 52vs 24579% below
Medians across 6,477 physician assistants in New York with Dmand AI profiles that report each measure.
Erin Underhill's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Erin Underhill and other physician assistants in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Erin Underhill treated 70 Medicare patients in 2024, average age 72
CMS counts 70 Medicare patients who saw Erin Underhill in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have arthritis, and 73% have high cholesterol. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Erin Underhill's median patient age at 60, with 61% women.
Erin Underhill's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Erin Underhill's Medicare patients by sex, 2024
- Women4869%
- Men2231%
Chronic conditions among Erin Underhill's Medicare patients, 2024
- Arthritis75%
- High cholesterol73%
- High blood pressure63%
- Anxiety36%
- Diabetes33%
- Mood disorders26%
- Depression24%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Erin Underhill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women61%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Erin Underhill wrote 85 Medicare Part D claims in 2024
In 2024, Erin Underhill wrote 85 Medicare Part D claims for 54 patients. 100% of them were for generic drugs. CMS names the drug for 52 of them, across 2 drugs with 11 or more claims each, at $111 in total drug cost.
Erin Underhill's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Erin Underhill takes part in Medicare
Erin Underhill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Erin Underhill received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to Erin Underhill from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Gotham Surgical Solutions & Devices, Inc. paid the most, $21.
Companies that paid Erin Underhill the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Erin Underhill is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Erin Underhill's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Erin Underhill
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Erin Underhill's NPI number?
Erin Underhill's NPI number is 1841629318. It was assigned on November 5, 2013, and it is active in the NPI Registry.
What does Erin Underhill specialize in?
Erin Underhill is a physician assistant in Yonkers, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Erin Underhill practice?
Erin Underhill practices at 2 Park Ave, Yonkers, NY 10703. Erin Underhill's primary practice is St John's Riverside Hospital Parkcare Pavillion in Yonkers, New York. Dmand AI also links Erin Underhill to 1 group practice or clinic.
What is Erin Underhill's office phone number?
The practice phone on file for Erin Underhill is (914) 207-0004.
What is Erin Underhill's medical license number?
Erin Underhill holds New York license 017104.
Which hospitals is Erin Underhill affiliated with?
Erin Underhill is affiliated with St. John's Riverside Hospital.
What medical group is Erin Underhill part of?
Erin Underhill is linked to SJR Medical, PC.
Does Erin Underhill accept Medicare?
Yes. CMS data shows Erin Underhill billed Medicare for 752 services in 2024, and Erin Underhill accepts Medicare assignment.
How many Medicare patients does Erin Underhill see?
CMS counts 70 Medicare patients who saw Erin Underhill in 2024, with an average age of 72.
Is Erin Underhill board certified?
Yes. Erin Underhill is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
Show 4 more questionsShow fewer questions
What services does Erin Underhill bill to Medicare?
In 2024, Erin Underhill's most billed Medicare services were injected or infused drug (J1010), surgery: bones and joints (20611) and office visit, established patient (99214).
What drugs does Erin Underhill prescribe most?
In 2024 Medicare Part D data, Erin Underhill's most prescribed drugs by claims were Meloxicam and Prednisone.
Has Erin Underhill received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Erin Underhill from 1 company from 2025 to 2025. The largest total came from Gotham Surgical Solutions & Devices, Inc.
How long has Erin Underhill been practicing?
Erin Underhill graduated from medical school in 2013, 13 years ago.
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