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DAVID J HAIDAK M.D.
NPI 1215933221
Internal Medicine - Hematology & Oncology in Clinton, MD

Active since June 23, 2005PECOS Enrolled
8926 WOODYARD RD, STE 201, CLINTON, MD 20735(301) 868-7911(301) 868-2285 Get Directions Write a Review

NPPES record last updated: May 15, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About David J Haidak M.d. NPPES

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

DAVID J HAIDAK M.D. (NPI 1215933221) is an individual hematology & oncology provider in Clinton, Maryland, licensed in Maryland (D0017605) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215933221
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDAVID J HAIDAKCredential: M.D.
Location Address8926 WOODYARD RD, STE 201Clinton, MD 20735-4231
Mailing Address8926 Woodyard Rd, Ste 201Clinton, MD 20735-4231 · (301) 868-7911 · Fax (301) 868-2285
Phone(301) 868-7911
Fax(301) 868-2285
Sole ProprietorNo
Enumeration DateJune 23, 2005
Last NPPES UpdateMay 15, 2008
✔ NPI 1215933221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in MD · D0017605
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
8926 WOODYARD RD, Clinton, MD 20735
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Other Identifiers 20

Other3000017United Healthcare
Other02810004DC · Bc/bs Of Dc
Other32300003Bc/bs Of Md - Greenbelt
Medicare UPINB93031DC
Medicaid20096 1700MD
Medicare PIN058589O50DC
Other04701Americaid
Medicaid022118900DC
Other324510Mamsi
OtherB6480002DC · Bc/bs Of Dc
Other830001307Rr Medicare
Other004052732Aetna Mng
Other830004072Rr Medicare
Other493216Healthlink
Other086401Cigna
Other324510Alliance
Medicare PIN058589O63DC
Other058810Trigon
Other32300002Bc/bs Of Md - Clinton
Other481545Aetna Hmo

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David J Haidak M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Haidak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Carroll Regional Cancer Center Physicians, LLC
55 mi
Hematology & Oncology
291 STONER AVE
Westminster, MD 21157
  • Reassigned Medicare billing, Maryland enrollment
  • 16 clinicians in this Medicare group
NPI 1609167998 (410) 871-6400

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 20735 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MRS. DIANA CARRERA
Student in an Organized Health Care Education/Training Program
8926 WOODYARD RD, SUITE 501
CLINTON, MD 20735
Prince George's County (855) 546-0861
RITA GUPTA M.D.
Internal Medicine (Hematology & Oncology)
8926 WOODYARD RD, SUITE 201
CLINTON, MD 20735
Prince George's County (301) 868-7911
JAMES CURTIS ROBERSON II M.D.
Internal Medicine (Rheumatology)
8926 WOODYARD RD, SUITE #601
CLINTON, MD 20735
Prince George's County (301) 856-1682
DR. KATHLEEN G. BUTLER M.D.
Specialist
8926 WOODYARD RD, SUITE 301
CLINTON, MD 20735
Prince George's County (301) 856-3670
DR. JORGE M. GARCIALA M.D.
Specialist
8926 WOODYARD RD, SUITE 301
CLINTON, MD 20735
Prince George's County (301) 856-3670
DR. DAVID KOWARSKI M.D.
Specialist
8926 WOODYARD RD, SUITE 301
CLINTON, MD 20735
Prince George's County (301) 856-3670
MEDSTAR MEDICAL GROUP II LLC
General Practice
8926 WOODYARD RD
CLINTON, MD 20735
Prince George's County (301) 719-1140
LUKE JOHNATHAN BLANKENHEIM PA-C
Physician Assistant
8926 WOODYARD RD, SUITE 701
CLINTON, MD 20735
Prince George's County (301) 856-1682

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 Haidak's NPI number?

The NPI number for David Haidak is 1215933221. It was assigned to this individual provider in the NPPES registry on June 23, 2005.

Where is David Haidak located?

David Haidak practices at 8926 Woodyard Rd Ste 201, Clinton, MD 20735. The listed phone number is (301) 868-7911.

What is David Haidak's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is David Haidak enrolled in Medicare?

Yes. David Haidak is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Haidak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Haidak reassigns Medicare benefits to Carroll Regional Cancer Center Physicians, LLC (Westminster, 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 Haidak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Haidak was last updated on May 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.