1. Home
  2. Directory
  3. Alabama
  4. Huntsville
  5. Internal Medicine
  6. NPI Profile

ONCOLOGY SPECIALTIES, P.C.
NPI 1669425716
Internal Medicine - Hematology & Oncology in Huntsville, AL

Active since May 18, 2006CLIA Certified · 7 labs
3601 CCI DR NW, HUNTSVILLE, AL 35805(256) 705-4224(256) 705-4135 Get Directions Write a Review

NPPES record last updated: December 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 17, 2025, Sep 26, 2024, Jan 27, 2023 (3 updates tracked since 2023).

About Oncology Specialties, P.c. NPPES

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

ONCOLOGY SPECIALTIES, P.C. (NPI 1669425716), doing business as Clearview Cancer Institute, is a healthcare organization registered as a hematology & oncology in Huntsville, Alabama and active in the NPI registry since May 2006. The organization holds 7 active CLIA laboratory certificates, maintains 12 additional practice locations, and lists Marshall Schreeder, Physician, as its authorized official.

NPPES Registry Identity

NPI1669425716
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameONCOLOGY SPECIALTIES, P.C.
Location Address3601 CCI DR NWHuntsville, AL 35805-2606
Mailing AddressPo Box 18428Huntsville, AL 35804-8428 · (256) 705-4224 · Fax (256) 705-4135
Phone(256) 705-4224
Fax(256) 705-4135
Organization SubpartNo
Authorized OfficialMarshall SchreederPhysician · (256) 705-4224
Enumeration DateMay 18, 2006
Last NPPES UpdateDecember 17, 20253 updates tracked since enumeration
NPPES CertifiedDecember 17, 2025
✔ NPI 1669425716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
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.
3601 CCI DR NW, Huntsville, AL 35805
Open in Google Maps ↗

Other Names 1

Doing Business AsClearview Cancer Institute

Secondary Practice Locations 12

Location 1901 Leighton Ave Ste 602Anniston, AL 36207-5765 · Phone (256) 238-1011
Location 2707 W Market StAthens, AL 35611-2463 · Phone (256) 705-4224
Location 31948 Al Highway 157 Ste 380Cullman, AL 35058-0611 · Phone (256) 775-9170
Location 41107 14th Ave SE Ste 200Decatur, AL 35601-3354 · Phone (256) 705-4224
Location 51310 14th Ave SEDecatur, AL 35601-4347 · Phone (256) 705-4224
Location 6380 Woods Cove Rd Ste BScottsboro, AL 35768-2428 · Phone (256) 705-4224
Location 7180 Cox Creek Pkwy S Ste BFlorence, AL 35630-3263 · Phone (256) 760-0422
Location 81 Hospital Dr SW Ste 400Huntsville, AL 35801-3495 · Phone (256) 705-4224
Location 93500 Highway 78 E Ste AJasper, AL 35501-8908 · Phone (256) 387-0333
Location 1012090 County Line Rd Ste BMadison, AL 35756-2002 · Phone (256) 705-4224
Location 11101 Blake AveMuscle Shoals, AL 35661-1207 · Phone (256) 760-0422
Location 121751 Veterans Dr Ste 190Florence, AL 35630-4930 · Phone (256) 760-0422

Other Identifiers 3

Other510-50070AL · Bcbs Of Alabama
Medicaid528701110AL
OtherCA0084AL · Railroad Medicare

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Magnolia Health, Ambetter Health, Ambetter of Alabama and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA 7

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 01D2156734

Oncology Specialties, PC · Jasper, AL
Active · expires Apr 10, 2027
CLIA Number01D2156734
Laboratory TypePhysician Office
Certificate Effective DateApril 11, 2025
Certificate Expiration DateApril 10, 2027
Laboratory DirectorDr. Michael M. Garcia
Laboratory Phone(205) 282-8630
Laboratory LocationOncology Specialties, PC3500 Hwy 78 E, Jasper, AL 35501
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 01D0302673

Oncology Specialties, PC · Muscle Shoals, AL
Active · expires Sep 1, 2027
CLIA Number01D0302673
Laboratory TypePhysician Office
Certificate Effective DateSeptember 2, 2025
Certificate Expiration DateSeptember 1, 2027
Laboratory DirectorDr. Clint D. Kingsley
Laboratory Phone(256) 705-4207
Laboratory LocationOncology Specialties, PC101 Dr W H Blake Jr Drive, Muscle Shoals, AL 35661
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Accreditation 01D2304606

Oncology Specialties, PC · Madison, AL
Active · expires Apr 21, 2027
CLIA Number01D2304606
Laboratory TypePhysician Office
Certificate Effective DateApril 22, 2025
Certificate Expiration DateApril 21, 2027
Laboratory DirectorDr. William Brix
Laboratory Phone(256) 705-4208
Laboratory LocationOncology Specialties, PC111 Research Blvd, Madison, AL 35756
CLIA data matches this NPI record on: Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Compliance 01D2156894

Oncology Specialties, PC · Cullman, AL
Active · expires Mar 27, 2027
CLIA Number01D2156894
Laboratory TypePhysician Office
Certificate Effective DateMarch 28, 2025
Certificate Expiration DateMarch 27, 2027
Laboratory DirectorMichael M. Garcia
Laboratory Phone(256) 615-6753
Laboratory LocationOncology Specialties, PCCullman Pob 1 1948 Hwy 157 Ste 380, Cullman, AL 35058
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 01D0906061

Oncology Specialties PC · Huntsville, AL
Active · expires Feb 20, 2027
CLIA Number01D0906061
Laboratory TypePhysician Office
Certificate Effective DateFebruary 21, 2025
Certificate Expiration DateFebruary 20, 2027
Laboratory DirectorWilliam Brix
Laboratory Phone(256) 327-5763
Laboratory LocationOncology Specialties PC1 Hospital Drive Suite 400, Huntsville, AL 35801
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 01D2151587

Oncology Specialties, PC · Florence, AL
Active · expires Jan 22, 2027
CLIA Number01D2151587
Laboratory TypePhysician Office
Certificate Effective DateJanuary 23, 2025
Certificate Expiration DateJanuary 22, 2027
Laboratory DirectorDr. Clint D. Kingsley
Laboratory Phone(256) 705-4208
Laboratory LocationOncology Specialties, PC180 S Cox Creek Pkwy, Suite B, Florence, AL 35630
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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.

KERLEY MEDICAL EQUIPMENT & SUPPLY, INC.
Durable Medical Equipment & Medical Supplies
3601 CCI DR NW, SUITE 260
HUNTSVILLE, AL 35805
Madison County (256) 327-5710
RANJAN PATEL GOLI CRNP
Nurse Practitioner
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224
JENNIFER BROWNELL PHARM.D.
Pharmacist (Oncology)
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 327-5900
LEIRON RAYE BAYLESS PA
Physician Assistant
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224
DR. MARSHALL T SCHREEDER M.D.
Internal Medicine (Medical Oncology)
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224
LAURA SPENCER SIMEONE PA-C
Physician Assistant
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224
CHRISTINE MARIE FUSSELL CRNP
Nurse Practitioner (Gerontology)
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224
MARTHA HOLT CRNP
Registered Nurse
3601 CCI DR NW
HUNTSVILLE, AL 35805
Madison County (256) 705-4224

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 Oncology Specialties, P.C.'s NPI number?

The NPI number for Oncology Specialties, P.C. is 1669425716. It was assigned to this organization in the NPPES registry on May 18, 2006. The provider is doing business as Clearview Cancer Institute.

Where is Oncology Specialties, P.C. located?

Oncology Specialties, P.C. is located at 3601 Cci Dr NW, Huntsville, AL 35805. The listed phone number is (256) 705-4224.

What is Oncology Specialties, P.C.'s specialty?

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

Does Oncology Specialties, P.C. hold CLIA laboratory certificates?

Yes. 7 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Oncology Specialties, P.C. accept?

Health plans from Ambetter Health, Ambetter from Magnolia Health, Ambetter of Alabama, Ambetter of Tennessee and UnitedHealthcare list Oncology Specialties, P.C. 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 Oncology Specialties, P.C. was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.