WALKIRIA R JIMENEZ-LOO M.D.
NPI 1992901045
Hospitalist in New York, NY

Active since June 25, 2007PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
5141 BROADWAY, NEW YORK, NY 10034(212) 932-4000 Get Directions Write a Review

NPPES record last updated: October 27, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 27, 2022, Jun 20, 2017 (2 updates tracked since 2017).

About Walkiria R Jimenez-loo M.d. NPPES

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

WALKIRIA R JIMENEZ-LOO M.D. (NPI 1992901045) is an individual hospitalist provider in New York, New York, licensed in New York (272873) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (2007).

NPPES Registry Identity

NPI1992901045
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameWALKIRIA R JIMENEZ-LOOCredential: M.D.
Location Address5141 BROADWAYNew York, NY 10034-1159
Mailing Address630 W 168th StNew York, NY 10032-3725 · (212) 342-5155
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2007
Enumeration DateJune 25, 2007
Last NPPES UpdateOctober 27, 20222 updates tracked since enumeration
NPPES CertifiedOctober 27, 2022
✔ NPI 1992901045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in NY · 272873
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
5141 BROADWAY, New York, NY 10034

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

Walkiria R Jimenez-loo 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 ID8426243395
PECOS Enrollment IDI20140729001525
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 Walkiria Jimenez-loo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Surgery
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • Also billed through NPI 1982993184 (New York)
  • 3,922 clinicians in this Medicare group
Internal Medicine
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • 612 clinicians in this Medicare group

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 4

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.

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.
140 services66 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
131 services74 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
56 services56 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
27 services14 patients

Hospital Affiliations CMS Care Compare

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

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330101
Location525 East 68th StreetNew York, NY 10065 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10034 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.8
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers23 claims23 services$14.12 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers23 claims23 services$64.79 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Nurse Practitioner (Psychiatric/Mental Health)
5141 BROADWAY
NEW YORK, NY 10034
Nurse Practitioner (Psychiatric/Mental Health)
5141 BROADWAY
NEW YORK, NY 10034
Hospitalist
5141 BROADWAY
NEW YORK, NY 10034
Internal Medicine
5141 BROADWAY
NEW YORK, NY 10034
Neurological Surgery
5141 BROADWAY
NEW YORK, NY 10034
Physician Assistant (Medical)
5141 BROADWAY, ALLEN PAVILION
NEW YORK, NY 10034
Internal Medicine
5141 BROADWAY
NEW YORK, NY 10034
Physician Assistant (Surgical)
5141 BROADWAY
NEW YORK, NY 10034

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 Walkiria Jimenez-loo's NPI number?

The NPI number for Walkiria Jimenez-loo is 1992901045. It was assigned to this individual provider in the NPPES registry on June 25, 2007.

Where is Walkiria Jimenez-loo located?

Walkiria Jimenez-loo practices at 5141 Broadway, New York, NY 10034. The listed phone number is (212) 932-4000.

What is Walkiria Jimenez-loo's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Walkiria Jimenez-loo enrolled in Medicare?

Yes. Walkiria Jimenez-loo 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 Walkiria Jimenez-loo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Walkiria Jimenez-loo reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and Trustees Of Columbia University In The City Of New York (New York, NY). 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 Walkiria Jimenez-loo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Walkiria Jimenez-loo affiliated with any hospitals?

According to CMS data, Walkiria Jimenez-loo is affiliated with New York-Presbyterian Hospital.

When was this NPI record last updated?

The NPPES record for Walkiria Jimenez-loo was last updated on October 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.