DR. ESTHER I KRUG M.D.
NPI 1699713610
Internal Medicine - Endocrinology, Diabetes & Metabolism in Baltimore, MD
About Dr. Esther I Krug M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ESTHER I KRUG M.D. (NPI 1699713610) is an individual endocrinology, diabetes & metabolism provider in Baltimore, Maryland, licensed in Maryland (D0059273) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Esther I Krug M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Esther Krug reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21215
- Reassigned Medicare billing, Maryland enrollment
- 664 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, New Jersey and New York enrollments
- 13 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 11
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.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDSinai Hospital Of Baltimore
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21215 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.
Referred Medical Equipment & Supplies CMS DME claims 6
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 21215
BALTIMORE, MD 21215
BALTIMORE, MD 21215
BALTIMORE, MD 21215
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 Esther Krug's NPI number?
The NPI number for Esther Krug is 1699713610. It was assigned to this individual provider in the NPPES registry on June 3, 2006.
Where is Esther Krug located?
Esther Krug practices at 2435 W Belvedere Ave Suite 56, Baltimore, MD 21215. The listed phone number is (410) 601-5961.
What is Esther Krug's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Esther Krug enrolled in Medicare?
Yes. Esther Krug is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Esther Krug's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Esther Krug reassigns Medicare benefits to 2 organizations: Sinai Hospital Of Baltimore Inc (Baltimore, MD) and Dialog Healthcare, LLC (Rockville, 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 Esther Krug's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Esther Krug affiliated with any hospitals?
According to CMS data, Esther Krug is affiliated with Johns Hopkins Hospital, The and Sinai Hospital Of Baltimore.
When was this NPI record last updated?
The NPPES record for Esther Krug was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Esther I Krug, M.D. · NPI 1699713610
Endocrinology, Diabetes & Metabolism physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 3, 2006.
## Identity
- **NPI:** 1699713610 (Entity type: Individual)
- **Enumerated:** June 3, 2006
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** D0059273 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 2435 W BELVEDERE AVE, SUITE 56, Baltimore, MD 21215-5224
- **Phone:** (410) 601-5961 · **Fax:** (410) 601-9390
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Sinai Hospital Of Baltimore Inc (NPI 1033134663, Baltimore, MD); Dialog Healthcare, LLC (NPI 1235729153, Rockville, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** March 17, 2025
- **Other identifiers:** Other 110245394 (MD); Medicaid 510109300 (MD); Medicaid 07708152/01 (MD); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1699713610) · Data from the CMS NPPES public registry.