DR. HOMA TIMLIN MD
NPI 1235460866
Internal Medicine - Rheumatology in Baltimore, MD
About Dr. Homa Timlin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HOMA TIMLIN MD (NPI 1235460866) is an individual rheumatology provider in Baltimore, Maryland, licensed in Maryland (D78311) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Homa Timlin Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Homa Timlin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 2
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, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 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.
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 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Homa Timlin's NPI number?
The NPI number for Homa Timlin is 1235460866. It was assigned to this individual provider in the NPPES registry on January 21, 2010.
Where is Homa Timlin located?
Homa Timlin practices at 5501 Hopkins Bayview Cir 1B 21, Baltimore, MD 21224. The listed phone number is (410) 550-7716.
What is Homa Timlin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Homa Timlin enrolled in Medicare?
Yes. Homa Timlin is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Homa Timlin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Homa Timlin reassigns Medicare benefits to Johns Hopkins University (Baltimore, MD). 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 Homa Timlin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Homa Timlin affiliated with any hospitals?
According to CMS data, Homa Timlin is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Homa Timlin was last updated on May 28, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Homa Timlin, MD · NPI 1235460866
Rheumatology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since January 21, 2010.
## Identity
- **NPI:** 1235460866 (Entity type: Individual)
- **Enumerated:** January 21, 2010
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** D78311 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 5501 HOPKINS BAYVIEW CIR, 1B 21, Baltimore, MD 21224-6821
- **Phone:** (410) 550-7716 · **Fax:** (410) 550-1033
## 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:** Johns Hopkins University (NPI 1306810619, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** May 28, 2015
- **Other identifiers:** Medicare PIN 372488ZBLS (MD); Medicaid 084352100 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1235460866) · Data from the CMS NPPES public registry.