JOANNA KLUBO-GWIEZDZINSKA MD, PHD
NPI 1912237058
Internal Medicine - Endocrinology, Diabetes & Metabolism in Bethesda, MD
About Joanna Klubo-gwiezdzinska Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA KLUBO-GWIEZDZINSKA MD, PHD (NPI 1912237058) is an individual endocrinology, diabetes & metabolism provider in Bethesda, Maryland, licensed in District Of Columbia (MD043529) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses 2
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
Joanna Klubo-gwiezdzinska Md, Phd 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 Reassignment
Medicare enrollment records show Joanna Klubo-gwiezdzinska reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tysons, VA 22102
- Reassigned Medicare billing, District of Columbia enrollment
- 691 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20892 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Joanna Klubo-gwiezdzinska's NPI number?
The NPI number for Joanna Klubo-gwiezdzinska is 1912237058. It was assigned to this individual provider in the NPPES registry on January 13, 2010.
Where is Joanna Klubo-gwiezdzinska located?
Joanna Klubo-gwiezdzinska practices at Nih Niddk Building 10 Crc 10 Center Dr, Bethesda, MD 20892. The listed phone number is (240) 688-3589.
What is Joanna Klubo-gwiezdzinska's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Joanna Klubo-gwiezdzinska enrolled in Medicare?
Yes. Joanna Klubo-gwiezdzinska 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 organization bills Medicare for Joanna Klubo-gwiezdzinska's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Klubo-gwiezdzinska reassigns Medicare benefits to Johns Hopkins Community Physicians, Inc (Tysons, VA). The 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 Joanna Klubo-gwiezdzinska's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joanna Klubo-gwiezdzinska was last updated on May 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Joanna Klubo-Gwiezdzinska, MD, PHD · NPI 1912237058
Endocrinology, Diabetes & Metabolism physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since January 13, 2010.
## Identity
- **NPI:** 1912237058 (Entity type: Individual)
- **Enumerated:** January 13, 2010
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** MD043529 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** NIH NIDDK BUILDING 10 CRC 10 CENTER DR, Bethesda, MD 20892-1613
- **Phone:** (240) 688-3589
## 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:** Johns Hopkins Community Physicians, Inc (NPI 1790631695, Tysons, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** May 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1912237058) · Data from the CMS NPPES public registry.