MARY LINPEI GUAN
NPI 1346703089
Internal Medicine - Rheumatology in New York, NY

Active since April 10, 2019PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
550 1ST AVE, NEW YORK, NY 10016(212) 263-5506 Get Directions Write a Review

NPPES record last updated: May 15, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 15, 2026, Nov 4, 2022, Jul 11, 2022 and 2 more (5 updates tracked since 2019).

About Mary Linpei Guan NPPES

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

MARY LINPEI GUAN (NPI 1346703089) is an individual rheumatology provider in New York, New York, licensed in New York (316220) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of University Of Michigan Medical School (2019).

NPPES Registry Identity

NPI1346703089
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameMARY LINPEI GUAN
Location Address550 1ST AVENew York, NY 10016-6402
Mailing Address550 1st AveNew York, NY 10016-6402 · (212) 263-5503
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2019
Enumeration DateApril 10, 2019
Last NPPES UpdateMay 15, 20265 updates tracked since enumeration
NPPES CertifiedMay 15, 2026
NPI 1346703089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in NY · 316220
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal MedicineTaxonomy 207R00000X · License 316220 (NY)
Also ListedHospitalistTaxonomy 208M00000X · License 316220 (NY)
550 1ST AVE, New York, NY 10016

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mary Linpei Guan 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 ID6800129438
PECOS Enrollment IDI20220620001726
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.

Hospital Affiliations CMS Care Compare

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

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10016 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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

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.

Internal Medicine
550 1ST AVE
NEW YORK, NY 10016
Emergency Medicine (Pediatric Emergency Medicine)
550 1ST AVE
NEW YORK, NY 10016
Allergy & Immunology
550 1ST AVE, NBV 16N30, INTERNAL MEDICINE RESIDENCY PROGRAM
NEW YORK, NY 10016
Student in an Organized Health Care Education/Training Program
550 1ST AVE
NEW YORK, NY 10016
Radiology (Vascular & Interventional Radiology)
550 1ST AVE
NEW YORK, NY 10016
Surgery
550 1ST AVE
NEW YORK, NY 10016
Student in an Organized Health Care Education/Training Program
550 1ST AVE
NEW YORK, NY 10016
Student in an Organized Health Care Education/Training Program
550 1ST AVE
NEW YORK, NY 10016

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 Mary Guan's NPI number?

The NPI number for Mary Guan is 1346703089. It was assigned to this individual provider in the NPPES registry on April 10, 2019.

Where is Mary Guan located?

Mary Guan practices at 550 1st Ave, New York, NY 10016. The listed phone number is (212) 263-5506.

What is Mary Guan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Mary Guan enrolled in Medicare?

Yes. Mary Guan 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.

Is Mary Guan affiliated with any hospitals?

According to CMS data, Mary Guan is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Mary Guan was last updated on May 15, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.