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DR. LEONIDEZ DE GUZMAN M.D.
NPI 1699900340
Internal Medicine - Infectious Disease in New Rochelle, NY

Active since May 26, 2009PECOS EnrolledAccepts Medicare Assignment
88.67/100
CMS Quality Rating
50 GUION PL APT 4K, NEW ROCHELLE, NY 10801(914) 318-7428 Get Directions Write a Review

NPPES record last updated: May 19, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Leonidez De Guzman M.d. NPPES

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

DR. LEONIDEZ DE GUZMAN M.D. (NPI 1699900340) is an individual infectious disease provider in New Rochelle, New York, licensed in Oregon (MD154002) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Legacy Emanuel Medical Center, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1699900340
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. LEONIDEZ DE GUZMANCredential: M.D.
Location Address50 GUION PL APT 4KNew Rochelle, NY 10801-5516
Mailing Address600 Nw 11th St, Ste E37Hermiston, OR 97838-8604 · (914) 318-7428
Phone(914) 318-7428
Sole ProprietorYes
Medical School CMSOtherGraduated 2002
Enumeration DateMay 26, 2009
Last NPPES UpdateMay 19, 2016
✔ NPI 1699900340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in OR · MD154002
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
50 GUION PL APT 4K, New Rochelle, NY 10801
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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

Dr. Leonidez De Guzman 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 ID5597936211
PECOS Enrollment IDI20110928000760, I20210917002713
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

7

Medicare enrollment records show Leonidez De Guzman reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Good Shepherd Health Care System
2,286 mi
Critical Access
610 NW 11TH ST
Hermiston, OR 97838
  • Reassigned Medicare billing, Oregon enrollment
  • 344 clinicians in this Medicare group
NPI 1295789667 (541) 667-3400
Legacy Clinics LLC
2,433 mi
Rural Health
36860 INDUSTRIAL WAY
Sandy, OR 97055
  • Reassigned Medicare billing, Oregon enrollment
  • 1,248 clinicians in this Medicare group
NPI 1730472192 (503) 826-0206
Sapphire At Gresham Rehab, LLC
2,439 mi
Skilled Nursing Facility
405 NE 5TH ST
Gresham, OR 97030
  • Reassigned Medicare billing, Oregon and Washington enrollments
  • Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
  • Also billed through NPI 1609171081 (Washington)
  • 3,207 clinicians in this Medicare group
NPI 1033740899 (503) 666-5600
Legacy Salmon Creek Hospital
2,446 mi
Clinic/Center
2211 NE 139TH ST
Vancouver, WA 98686
  • Reassigned Medicare billing, Washington enrollment
  • 754 clinicians in this Medicare group
NPI 1356357784 (360) 487-2878
South Sound Inpatient Physicians PLLC
2,448 mi
Hospitalist
1500 DIVISION ST
Oregon City, OR 97045
  • Reassigned Medicare billing, Oregon enrollment
  • 98 clinicians in this Medicare group
NPI 1053578237 (503) 656-1631
Legacy Emanuel Hospital & Health Center
2,450 mi
General Acute Care Hospital
1225 NE 2ND AVE
Portland, OR 97232
  • Reassigned Medicare billing, Oregon enrollment
  • 719 clinicians in this Medicare group
NPI 1003367491 (503) 944-8000
Legacy Good Samaritan Hospital And Medical Center
2,451 mi
General Acute Care Hospital
1015 NW 22ND AVE
Portland, OR 97210
  • Reassigned Medicare billing, Oregon enrollment
  • 387 clinicians in this Medicare group
NPI 1780608216 (503) 413-7711

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 3

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 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.
33 services19 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.
15 services11 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Legacy Emanuel Medical Center

Acute Care Hospitals · Portland, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380007
Location2801 N Gantenbein AvenuePortland, OR 97227 · Multnomah County
Emergency services Birthing friendly

Legacy Good Samaritan Medical Center

Acute Care Hospitals · Portland, OR
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380017
Location1015 NW 22nd Avenue, W121Portland, OR 97210 · Multnomah County
Emergency services Birthing friendly

Legacy Mount Hood Medical Center

Acute Care Hospitals · Gresham, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380025
Location24800 SE Stark StreetGresham, OR 97030 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10801 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

88.67/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality91.54
Promoting Interoperability100
Improvement Activities40
Cost70.7

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 Leonidez De Guzman's NPI number?

The NPI number for Leonidez De Guzman is 1699900340. It was assigned to this individual provider in the NPPES registry on May 26, 2009.

Where is Leonidez De Guzman located?

Leonidez De Guzman practices at 50 Guion Pl Apt 4K, New Rochelle, NY 10801. The listed phone number is (914) 318-7428.

What is Leonidez De Guzman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Leonidez De Guzman enrolled in Medicare?

Yes. Leonidez De Guzman 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 Leonidez De Guzman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leonidez De Guzman reassigns Medicare benefits to 7 organizations: Good Shepherd Health Care System (Hermiston, OR), Legacy Clinics LLC (Sandy, OR), Sapphire At Gresham Rehab, LLC (Gresham, OR), Legacy Salmon Creek Hospital (Vancouver, WA), South Sound Inpatient Physicians PLLC (Oregon City, OR) and 2 more organizations, listed in the Medicare section above. 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 Leonidez De Guzman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Leonidez De Guzman affiliated with any hospitals?

According to CMS data, Leonidez De Guzman is affiliated with Legacy Emanuel Medical Center, Legacy Good Samaritan Medical Center and Legacy Mount Hood Medical Center.

When was this NPI record last updated?

The NPPES record for Leonidez De Guzman was last updated on May 19, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.