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MRS. EWA RUEL M.D.
NPI 1023242799
Internal Medicine - Endocrinology, Diabetes & Metabolism in Princeton, NJ

Active since May 11, 2009PECOS EnrolledAccepts Medicare Assignment
95.77/100
CMS Quality Rating
601 EWING ST STE C8, PRINCETON, NJ 08540(609) 924-4433(609) 924-4423 Get Directions Write a Review

NPPES record last updated: February 5, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mrs. Ewa Ruel M.d. NPPES

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

MRS. EWA RUEL M.D. (NPI 1023242799) is an individual endocrinology, diabetes & metabolism provider in Princeton, New Jersey, licensed in New Jersey (25MA09882300) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of Virginia Commonwealth University, School Of Medicine (2009).

NPPES Registry Identity

NPI1023242799
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMRS. EWA RUELCredential: M.D.
Location Address601 EWING ST STE C8Princeton, NJ 08540-2756
Mailing Address2 Capital Way, Suite 290Pennington, NJ 08534-2521 · (609) 303-4300
Phone(609) 924-4433
Fax(609) 924-4423
Sole ProprietorYes
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2009
Enumeration DateMay 11, 2009
Last NPPES UpdateFebruary 5, 2020
✔ NPI 1023242799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in NJ · 25MA09882300
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
601 EWING ST STE C8, Princeton, NJ 08540
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Oscar Health.Insurance ›

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

Mrs. Ewa Ruel M.d. 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 ID1850679291
PECOS Enrollment IDI20161105000073, I20201216000701
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 Reassignments

2

Medicare enrollment records show Ewa Ruel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Capital Health Medical Group
11 mi
Internal Medicine
750 BRUNSWICK AVE
Trenton, NJ 08638
  • Reassigned Medicare billing, New Jersey and Pennsylvania enrollments
  • 581 clinicians in this Medicare group
NPI 1437516887 (609) 815-7829
Advocare, LLC
36 mi
Pediatrics
401 ROUTE 73 N STE 320
Marlton, NJ 08053
  • Reassigned Medicare billing, New Jersey enrollment
  • 909 clinicians in this Medicare group
NPI 1770538696 (856) 872-7055

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.

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.
197 services136 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
136 services86 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
50 services36 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.
46 services37 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.
28 services28 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
21 services13 patients

Hospital Affiliations CMS Care Compare 4

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

University Medical Center Of Princeton At Plainsboro

Acute Care Hospitals · Plainsboro, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310010
LocationOne-Five Plainsboro RoadPlainsboro, NJ 08536 · Middlesex County
Emergency services Birthing friendly

Capital Health Medical Center - Hopewell

Acute Care Hospitals · Pennington, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310044
LocationOne Capital WayPennington, NJ 08534 · Mercer County
Emergency services Birthing friendly

Capital Health Regional Medical Center

Acute Care Hospitals · Trenton, NJ
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310092
Location750 Brunswick AveTrenton, NJ 08638 · Mercer County
Emergency services

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08540 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
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

95.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality76.75
Promoting Interoperability100
Improvement Activities40

Reported Quality Measures

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
100%288 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
21 suppliers57 claims189 services$6.14 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
14 suppliers34 claims49 services$1.13 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
5 suppliers144 claims145 services$192.45 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Ewa Ruel's NPI number?

The NPI number for Ewa Ruel is 1023242799. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Where is Ewa Ruel located?

Ewa Ruel practices at 601 Ewing St Ste C8, Princeton, NJ 08540. The listed phone number is (609) 924-4433.

What is Ewa Ruel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Ewa Ruel enrolled in Medicare?

Yes. Ewa Ruel 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 organizations bill Medicare for Ewa Ruel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ewa Ruel reassigns Medicare benefits to 2 organizations: Capital Health Medical Group (Trenton, NJ) and Advocare, LLC (Marlton, NJ). Each 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 Ewa Ruel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ewa Ruel accept?

Health plans from Ambetter Health and Oscar Health list Ewa Ruel 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 Ewa Ruel affiliated with any hospitals?

According to CMS data, Ewa Ruel is affiliated with University Medical Center Of Princeton At Plainsboro, Capital Health Medical Center - Hopewell, Capital Health Regional Medical Center and Hospital Of Univ Of Pennsylvania.

When was this NPI record last updated?

The NPPES record for Ewa Ruel was last updated on February 5, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.