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DAVID W KOSSOFF M.D.
NPI 1629152582
Specialist in Frederick, MD

Active since October 25, 2006PECOS EnrolledAccepts Medicare Assignment
80.55/100
CMS Quality Rating
110 THOMAS JOHNSON DR STE 335, FREDERICK, MD 21702(301) 624-5566(301) 624-5542 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About David W Kossoff M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID W KOSSOFF M.D. (NPI 1629152582) is an individual specialist in Frederick, Maryland, licensed in Maryland (D0054121) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and is a graduate of University Of Maryland School Of Medicine (1992).

NPPES Registry Identity

NPI1629152582
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDAVID W KOSSOFFCredential: M.D.
Location Address110 THOMAS JOHNSON DR STE 335Frederick, MD 21702-4949
Mailing Address110 Thomas Johnson Dr Ste 335Frederick, MD 21702-4949 · (301) 624-5566 · Fax (301) 624-5542
Phone(301) 624-5566
Fax(301) 624-5542
Sole ProprietorYes
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 1992
Enumeration DateOctober 25, 2006
Last NPPES UpdateSeptember 17, 2025
NPPES CertifiedSeptember 17, 2025
✔ NPI 1629152582 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in MD · D0054121
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
110 THOMAS JOHNSON DR STE 335, Frederick, MD 21702
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Other Identifiers 8

OtherP10152MD · Informed
Other376329MD · Alliance Mamsi
OtherP00206418MD · Railroad Medicare
Other494710MD · Ncppo
Other682BDAMD · Carefirst Of Maryland
OtherK4040001DC · Carefirst Of National Cap
Medicaid133102701MD
Other2027119MD · United Healthcare

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

David W Kossoff 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.

PECOS PAC ID7113974908
PECOS Enrollment IDI20050405000630
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show David Kossoff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

David W. Kossoff, M.D., LLC
Same address
Specialist
110 THOMAS JOHNSON DR STE 335
Frederick, MD 21702
  • Reassigned Medicare billing, Maryland enrollment
  • 11 clinicians in this Medicare group
NPI 1437206984 (301) 624-5566

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 5

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.

Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
203 services202 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
122 services122 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
121 services113 patients
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249
This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.
29 services27 patients
Injection beneath lining of large bowel using a flexible endoscope 45381
This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.
13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Frederick Health Hospital

Acute Care Hospitals · Frederick, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210005
Location400 West Seventh StFrederick, MD 21701 · Frederick County
Emergency services Birthing friendly

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.

80.55/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.18
Promoting Interoperability100
Improvement Activities40
Cost42

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ARASH ZARRIN DO
Internal Medicine (Gastroenterology)
110 THOMAS JOHNSON DR STE 335
FREDERICK, MD 21702
Frederick County (301) 624-5566
DAVID W. KOSSOFF, M.D., LLC
Specialist
110 THOMAS JOHNSON DR STE 335
FREDERICK, MD 21702
Frederick County (301) 624-5566
PILIN DHOIEAM FRANCIS DO
Internal Medicine (Gastroenterology)
110 THOMAS JOHNSON DR STE 335
FREDERICK, MD 21702
Frederick County (301) 624-5566
LINDSAY BITTO
Nurse Practitioner (Family)
110 THOMAS JOHNSON DR STE 335
FREDERICK, MD 21702
Frederick County (301) 624-5566

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 David Kossoff's NPI number?

The NPI number for David Kossoff is 1629152582. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is David Kossoff located?

David Kossoff practices at 110 Thomas Johnson Dr Ste 335, Frederick, MD 21702. The listed phone number is (301) 624-5566.

What is David Kossoff's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is David Kossoff enrolled in Medicare?

Yes. David Kossoff 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 David Kossoff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Kossoff reassigns Medicare benefits to David W. Kossoff, M.D., LLC (Frederick, 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 David Kossoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is David Kossoff affiliated with any hospitals?

According to CMS data, David Kossoff is affiliated with Frederick Health Hospital.

When was this NPI record last updated?

The NPPES record for David Kossoff was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.