DR. MARK KATS MD
NPI 1922007921
Anesthesiology in Newburyport, MA
About Dr. Mark Kats Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK KATS MD (NPI 1922007921) is an individual anesthesiology provider in Newburyport, Massachusetts, licensed in Massachusetts (150887) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Anna Jaques Hospital, and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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. Mark Kats 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 Mark Kats reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1245773308 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 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 9
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Anna Jaques Hospital
Acute Care Hospitals · Newburyport, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEWBURYPORT, MA 01950
NEWBURYPORT, MA 01950
NEWBURYPORT, MA 01950
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 Mark Kats's NPI number?
The NPI number for Mark Kats is 1922007921. It was assigned to this individual provider in the NPPES registry on July 20, 2005.
Where is Mark Kats located?
Mark Kats practices at 25 Highland Ave, Newburyport, MA 01950. The listed phone number is (978) 463-1000.
What is Mark Kats's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Kats enrolled in Medicare?
Yes. Mark Kats 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 Mark Kats's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Kats reassigns Medicare benefits to 2 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). 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 Mark Kats's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Kats affiliated with any hospitals?
According to CMS data, Mark Kats is affiliated with Anna Jaques Hospital.
When was this NPI record last updated?
The NPPES record for Mark Kats was last updated on October 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Mark Kats, MD · NPI 1922007921
Anesthesiology physician in Newburyport, Massachusetts. Individual provider, active in the CMS NPPES registry since July 20, 2005.
## Identity
- **NPI:** 1922007921 (Entity type: Individual)
- **Enumerated:** July 20, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 150887 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 25 HIGHLAND AVE, Newburyport, MA 01950-3867
- **Phone:** (978) 463-1000
## 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): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** October 16, 2007
- **Other identifiers:** Medicare UPIN G36164 (MA); Medicare PIN A21805 (MA); Medicaid 3154866 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1922007921) · Data from the CMS NPPES public registry.