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DR. WEIDUN ALAN GUO MD
NPI 1598779720
Surgery - Trauma Surgery in Buffalo, NY

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment
90.03/100
CMS Quality Rating
462 GRIDER ST, DEPT OF SURGERY, BUFFALO, NY 14215(716) 898-5186(716) 898-3194 Get Directions Write a Review

NPPES record last updated: March 26, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Weidun Alan Guo Md NPPES

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

DR. WEIDUN ALAN GUO MD (NPI 1598779720) is an individual trauma surgery provider in Buffalo, New York, licensed in New York (240872) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of Other (1984).

NPPES Registry Identity

NPI1598779720
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameDR. WEIDUN ALAN GUOCredential: MD
Location Address462 GRIDER ST, DEPT OF SURGERYBuffalo, NY 14215-3021
Mailing AddressPo Box 8000 Dept 313, University At Buffalo Surgeons, Inc.Buffalo, NY 14267-0002 · (716) 888-4889 · Fax (716) 849-5620
Phone(716) 898-5186
Fax(716) 898-3194
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateJuly 27, 2006
Last NPPES UpdateMarch 26, 2014
✔ NPI 1598779720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in NY · 240872
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
462 GRIDER ST, Buffalo, NY 14215
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Other Identifiers 2

Medicare UPINI62546
Medicaid02806664NY

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. Weidun Alan Guo Md 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 ID1759388549
PECOS Enrollment IDI20061109000301
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

3

Medicare enrollment records show Weidun Guo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University At Buffalo Surgeons Inc
Same address
Surgery
462 GRIDER ST, DK MILLER BLDG
Buffalo, NY 14215
  • Reassigned Medicare billing, New York enrollment
  • 59 clinicians in this Medicare group
NPI 1508898305 (716) 898-5186
Erie County Medical Center Corporation
0.1 mi
Clinic/Center
462 GRIDER ST
Buffalo, NY 14215
  • Reassigned Medicare billing, New York enrollment
  • 302 clinicians in this Medicare group
NPI 1528233616 (716) 898-3000
Kaleida Health
2.0 mi
General Acute Care Hospital
3 GATES CIR
Buffalo, NY 14209
  • Reassigned Medicare billing, New York enrollment
  • 676 clinicians in this Medicare group
NPI 1831229780 (716) 887-4600

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 10

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.
163 services71 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.
97 services53 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
61 services18 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.
49 services48 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
34 services29 patients
Removal of skin and tissue, 20.0 sq cm or less 11042
This procedure involves the surgical removal of skin and tissue, up to 20.0 square cm in size. It's often performed to treat conditions like skin cancer or to remove moles, warts, and other skin lesions. The area is numbed and the unwanted tissue is carefully cut out.
33 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Kaleida Health

Acute Care Hospitals · Buffalo, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330005
Location100 High StreetBuffalo, NY 14210 · Erie County
Emergency services Birthing friendly

Erie County Medical Center

Acute Care Hospitals · Buffalo, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330219
Location462 Grider StreetBuffalo, NY 14215 · Erie County
Emergency services

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.

90.03/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.88
Improvement Activities40
Cost63.01

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.

MR. V. THOMAS CHAPIN PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-3000
DR. JOHN JACOB HANNIBAL IV M.D.
Student in an Organized Health Care Education/Training Program
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-4226
HMB PHARMACY MANAGEMENT LLC
Pharmacy (Community/Retail Pharmacy)
462 GRIDER ST, DRIVEWAY 3
BUFFALO, NY 14215
Erie County (716) 332-2866
SARAH MARIE THOMPSON PA-C
Physician Assistant
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 698-5375
MATTHEW GARRETT ALBEN DO
Student in an Organized Health Care Education/Training Program
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-5053
DANNY ISSAM BELMONA MD
Student in an Organized Health Care Education/Training Program
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-3000
MR. KENNETH L DZIALAK COTA
Occupational Therapy Assistant
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-3575
MS. ZENA SONDRA HYMAN NP
Nurse Practitioner (Adult Health)
462 GRIDER ST
BUFFALO, NY 14215
Erie County (716) 898-3000

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 Weidun Guo's NPI number?

The NPI number for Weidun Guo is 1598779720. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Weidun Guo located?

Weidun Guo practices at 462 Grider St Dept Of Surgery, Buffalo, NY 14215. The listed phone number is (716) 898-5186.

What is Weidun Guo's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Weidun Guo enrolled in Medicare?

Yes. Weidun Guo 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 Weidun Guo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Weidun Guo reassigns Medicare benefits to 3 organizations: University At Buffalo Surgeons Inc (Buffalo, NY), Erie County Medical Center Corporation (Buffalo, NY) and Kaleida Health (Buffalo, 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 Weidun Guo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Weidun Guo affiliated with any hospitals?

According to CMS data, Weidun Guo is affiliated with Kaleida Health and Erie County Medical Center.

When was this NPI record last updated?

The NPPES record for Weidun Guo was last updated on March 26, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.