HARVEY IRWIN KATZEN M.D.
NPI 1750388138
Internal Medicine - Hematology & Oncology in Clinton, MD
NPI Status: Active since June 30, 2005
Contact Information
8926 WOODYARD RD
SUITE 201
CLINTON, MD
ZIP 20735
Phone: (301) 868-7911
Fax: (301) 868-2285
- Individual
- Male
- Internal Medicine
- Hematology & Oncology
About HARVEY KATZEN
This page provides the complete NPI Profile along with additional information for Harvey Katzen, an internist established in Clinton, Maryland with a medical specialization in Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1750388138 assigned on June 2005. The practitioner's primary taxonomy code is 207RH0003X with license number D0020352 (MD). The provider is registered as an individual and his NPI record was last updated August 2025.
- NPI
- 1750388138
- Provider Name
- HARVEY IRWIN KATZEN M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735
- Location Phone
- (301) 868-7911
- Location Fax
- (301) 868-2285
- Mailing Address
- 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735
- Mailing Phone
- (301) 868-7911
- Mailing Fax
- (301) 868-2285
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-30-2005
- Last Update Date
- 08-03-2025
- Code Navigator
An internist like Harvey Katzen is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Hematology & Oncology
- Taxonomy Code
- 207RH0003X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D0020352
- License State
- MD
- Taxonomy Description
- 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.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 1403479001 | OTHER (01) | CIGNA | |
| 32721002 | OTHER (01) | BC/BS OF MD | |
| 35411 | OTHER (01) | ALLIANCE | |
| 35411 | OTHER (01) | MAMSI | |
| 78459 1000 | MEDICAID (05) | MD | |
| 3000024 | OTHER (01) | UNITED HEALTHCARE | |
| B6480003 | OTHER (01) | DC | BC/BS OF DC |
| 0004052979 | OTHER (01) | AETNA MNG | |
| 022117200 | MEDICAID (05) | DC | |
| 058812 | OTHER (01) | TRIGON | |
| 481550 | OTHER (01) | AETNA HMO | |
| 02810005 | OTHER (01) | DC | BC/BS OF DC |
| 05766 | OTHER (01) | AMERICAID | |
| 493217 | OTHER (01) | HEALTHLINK |
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 7 | 5 | 0 | 3 | 8 | 8 | 1 | 3 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 7 | 10 | 0 | 6 | 8 | 16 | 1 | 6 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 7 + 1 + 0 + 0 + 6 + 8 + 1 + 6 + 1 + 6 + 24 = 62 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 62 = 8 | 8 | ||||||||
The NPI number 1750388138 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1215933221 | DAVID J HAIDAK M.D. Individual | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD STE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1962499103 | TERRENCE XAVIER DWYER M.D. Individual | Internal Medicine (Rheumatology) | 8926 WOODYARD RD SUITE 602 CLINTON, MD 20735 (301) 856-1682 |
| 1972583904 | LAURA A STANFIELD PA-C Individual | Physician Assistant (Medical) | 8926 WOODYARD RD SUITE 701 CLINTON, MD 20735 (301) 856-1682 |
| 1730169590 | DR. PHILIP S. MAN M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1538149372 | DR. PAUL L. WEINER M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1023098878 | DR. JORGE M. GARCIALA M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1437139250 | DR. ROBERT S. FRANKEL M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1184604787 | DR. GEORGE E. GILBERT M.D., PH.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1013997634 | DR. KATHLEEN G. BUTLER M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1649217464 | DEEPNARAYAN TIWARRI M.D. Individual | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1962443317 | ONCOLOGY-HEMATOLOGY ASSOCIATES PA Organization | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1003857269 | RITA GUPTA M.D. Individual | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1447291844 | ONCOLOGY-HEMATOLOGY INFUSION THERAPY INC Organization | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 602 CLINTON, MD 20735 (301) 868-9552 |
| 1871535245 | NICHOLAS A DEMONACO M.D. Individual | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1073556080 | DR. DAVID KOWARSKI M.D. Individual | Specialist | 8926 WOODYARD RD SUITE 301 CLINTON, MD 20735 (301) 856-3670 |
| 1982648036 | JOSE L MENDOZA M.D. Individual | Internal Medicine (Hematology & Oncology) | 8926 WOODYARD RD SUITE 201 CLINTON, MD 20735 (301) 868-7911 |
| 1003918558 | JAMES CURTIS ROBERSON II M.D. Individual | Internal Medicine (Rheumatology) | 8926 WOODYARD RD SUITE #601 CLINTON, MD 20735 (301) 856-1682 |
| 1558439133 | ROMMAAN S AHMAD DO Individual | Physical Medicine & Rehabilitation | 8926 WOODYARD RD SUITE 701 CLINTON, MD 20735 (301) 856-1682 |
| 1720240344 | GREATER METROPOLITAN ORTHOPAEDICS Organization | Physical Therapist | 8926 WOODYARD RD SUITE 501 CLINTON, MD 20735 (301) 719-1167 |
| 1184930885 | GREATER METROPOLITAN ORTHOPAEDICS Organization | Orthopaedic Surgery | 8926 WOODYARD RD SUITE 701 CLINTON, MD 20735 (301) 856-1682 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1750388138, enumerated in the NPI registry as an "individual" on June 30, 2005
The provider is located at 8926 Woodyard Rd Suite 201 Clinton, Md 20735 and the phone number is (301) 868-7911
The provider's speciality is Internal Medicine with taxonomy code 207RH0003X with a focus in Hematology & Oncology
The provider might be accepting Accepts: Cigna, Medicare, Medicaid, Blue Cross Blue Shield. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
This NPI record was last updated on June 30, 2005. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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