DR. HANNAH HAN GUAN MD
NPI 1063973907
Urology in Baltimore, MD
About Dr. Hannah Han Guan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HANNAH HAN GUAN MD (NPI 1063973907) is an individual urology provider in Baltimore, Maryland, licensed in Maryland (D0104014) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and maintains a secondary practice location in Tampa.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Hannah Han Guan 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.
Medicare Billing Reassignments
2Medicare enrollment records show Hannah Guan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 65 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 128 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 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Maryland Medical Center
Acute Care Hospitals · Baltimore, MDUniversity Of MD Medical Center Midtown Campus
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Hannah Guan's NPI number?
The NPI number for Hannah Guan is 1063973907. It was assigned to this individual provider in the NPPES registry on March 25, 2019.
Where is Hannah Guan located?
Hannah Guan practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (667) 214-1718.
What is Hannah Guan's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Hannah Guan enrolled in Medicare?
Yes. Hannah 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.
Which organizations bill Medicare for Hannah Guan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Guan reassigns Medicare benefits to 2 organizations: University Of Maryland Surgical Associates, PA (Baltimore, MD) and Maryland General Clinical Practice Group, Inc. (Baltimore, MD). 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 Hannah Guan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hannah Guan affiliated with any hospitals?
According to CMS data, Hannah Guan is affiliated with University Of Maryland Medical Center and University Of MD Medical Center Midtown Campus.
When was this NPI record last updated?
The NPPES record for Hannah Guan was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.
# Dr. Hannah Han Guan, MD · NPI 1063973907
Urology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 25, 2019.
## Identity
- **NPI:** 1063973907 (Entity type: Individual)
- **Enumerated:** March 25, 2019
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** D0104014 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, Baltimore, MD 21201-1544
- **Phone:** (667) 214-1718 · **Fax:** (410) 328-5147
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Surgical Associates, PA (NPI 1962417634, Baltimore, MD); Maryland General Clinical Practice Group, Inc. (NPI 1689413197, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** June 3, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1063973907) · Data from the CMS NPPES public registry.