REBECCA J HAMMON M.D.
NPI 1285955427
Otolaryngology in Baltimore, MD
About Rebecca J Hammon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA J HAMMON M.D. (NPI 1285955427) is an individual otolaryngology provider in Baltimore, Maryland, licensed in Maryland (D83053) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Rebecca J Hammon M.d. 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 Rebecca Hammon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gresham, OR 97030
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1609171081 (Washington)
- 3,207 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Rebecca Hammon's NPI number?
The NPI number for Rebecca Hammon is 1285955427. It was assigned to this individual provider in the NPPES registry on June 22, 2010.
Where is Rebecca Hammon located?
Rebecca Hammon practices at 600 N Wolfe St Fl 6, Baltimore, MD 21287. The listed phone number is (410) 955-4906.
What is Rebecca Hammon's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Rebecca Hammon enrolled in Medicare?
Yes. Rebecca Hammon 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 Rebecca Hammon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Hammon reassigns Medicare benefits to Sapphire At Gresham Rehab, LLC (Gresham, OR). 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 Rebecca Hammon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rebecca Hammon accept?
Health plans from Kaiser Permanente list Rebecca Hammon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Rebecca Hammon was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.
# Rebecca J Hammon, M.D. · NPI 1285955427
Otolaryngology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 22, 2010.
## Identity
- **NPI:** 1285955427 (Entity type: Individual)
- **Enumerated:** June 22, 2010
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** D83053 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE ST FL 6, Baltimore, MD 21287-0005
- **Phone:** (410) 955-4906 · **Fax:** (410) 955-0035
## 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:** Sapphire At Gresham Rehab, LLC (NPI 1033740899, Gresham, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** October 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1285955427) · Data from the CMS NPPES public registry.