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ERIN HERCULES MD, MBA
NPI 1720667181
Internal Medicine in Williamsburg, VA

Active since April 05, 2021PECOS EnrolledAccepts Medicare Assignment
7364 RICHMOND RD, WILLIAMSBURG, VA 23188(757) 345-0011(757) 345-0381 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2026, Jan 7, 2026, Apr 5, 2021 (3 updates tracked since 2021).

About Erin Hercules Md, Mba NPPES

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

ERIN HERCULES MD, MBA (NPI 1720667181) is an individual internal medicine provider in Williamsburg, Virginia, licensed in Virginia (0101286839) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Riverside Regional Medical Center, and maintains a secondary practice location in Williamsburg.

NPPES Registry Identity

NPI1720667181
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameERIN HERCULESCredential: MD, MBA
Location Address7364 RICHMOND RDWilliamsburg, VA 23188-7220
Mailing Address856 J Clyde Morris Blvd Ste ANewport News, VA 23601-1318 · (757) 316-5800
Phone(757) 345-0011
Fax(757) 345-0381
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 2021
Enumeration DateApril 5, 2021
Last NPPES UpdateJuly 21, 20263 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1720667181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in VA · 0101286839
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
7364 RICHMOND RD, Williamsburg, VA 23188
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Secondary Practice Location 1

Location 11500 Commonwealth AveWilliamsburg, VA 23185-5229 · Phone (757) 585-2250

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

Erin Hercules Md, Mba 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 ID4789086315
PECOS Enrollment IDI20260220001655
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 Erin Hercules reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Riverside Physician Services Inc
6.6 mi
Primary Care
301 COLLEGE ROW UNIT 9101
Williamsburg, VA 23185
  • Reassigned Medicare billing, Virginia enrollment
  • 1,097 clinicians in this Medicare group
NPI 1861414609 (757) 782-6200

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

Hospital Affiliations CMS Care Compare 2

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

Riverside Regional Medical Center

Acute Care Hospitals · Newport News, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490052
Location500 J Clyde Morris BlvdNewport News, VA 23601 · Newport News City County
Emergency services Birthing friendly

Riverside Doctors' Hospital Of Williamsburg

Acute Care Hospitals · Williamsburg, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490143
Location1500 Commonwealth AvenueWilliamsburg, VA 23185 · James City County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 23188 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
$129.04 typical visit price
range $56.19 – $170.30
Typical copayment $32.26 (range $14.04 – $42.57)
Most-billed visit code 99204
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
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.

Other Providers at the Same Location NPPES 9

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

APRIL LYNN GUMINSKY MD
Internal Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
KIMBERLY DIANNE MAIGI NP
Nurse Practitioner (Family)
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
AMNA HAMID FEROZE MD
Family Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
DR. PEDRO RAFAEL VILLANUEVA MD
Internal Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
MS. SARA ELAINE STEIN FNP-BC
Nurse Practitioner (Family)
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
JARED STEPHEN HARRISON D.O.
Family Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
RIVERSIDE PHYSICIAN SERVICES, INC
Internal Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011
RONALD DAVID GROSSMAN MD
Family Medicine
7364 RICHMOND RD
WILLIAMSBURG, VA 23188
James City County (757) 345-0011

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 Hercules's NPI number?

The NPI number for Erin Hercules is 1720667181. It was assigned to this individual provider in the NPPES registry on April 5, 2021.

Where is Erin Hercules located?

Erin Hercules practices at 7364 Richmond Rd, Williamsburg, VA 23188. The listed phone number is (757) 345-0011.

What is Erin Hercules's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Erin Hercules enrolled in Medicare?

Yes. Erin Hercules 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.

Which organization bills Medicare for Erin Hercules's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Hercules reassigns Medicare benefits to Riverside Physician Services Inc (Williamsburg, VA). 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 Erin Hercules's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Erin Hercules affiliated with any hospitals?

According to CMS data, Erin Hercules is affiliated with Riverside Regional Medical Center and Riverside Doctors' Hospital Of Williamsburg.

When was this NPI record last updated?

The NPPES record for Erin Hercules was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.