DR. ROBERT JOSEPH MARKELEWICZ JR. M.D.
NPI 1033364336
Nuclear Medicine - Nuclear Imaging & Therapy in Wellesley, MA
NPI Status: Active since December 01, 2008
Contact Information
51 WINDEMERE RD
WELLESLEY, MA
ZIP 02481
Phone: (401) 316-3166
- Individual
- Male
- Nuclear Medicine
- Nuclear Imaging & Therapy
About ROBERT MARKELEWICZ
This page provides the complete NPI Profile along with additional information for Robert Markelewicz, a provider established in Wellesley, Massachusetts with a medical specialization in Nuclear Medicine, focusing in nuclear imaging & therapy . The healthcare provider is registered in the NPI registry with number 1033364336 assigned on December 2008. The practitioner's primary taxonomy code is 207UN0902X with license number 238256 (MA). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1033364336
- Provider Name
- DR. ROBERT JOSEPH MARKELEWICZ JR. M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 51 WINDEMERE RD WELLESLEY, MA 02481
- Location Phone
- (401) 316-3166
- Mailing Address
- 51 WINDEMERE RD WELLESLEY, MA 02481
- Mailing Phone
- (401) 316-3166
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-01-2008
- Last Update Date
- 06-08-2026
- Code Navigator
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
Nuclear Medicine Nuclear Imaging & Therapy
- Taxonomy Code
- 207UN0902X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 238256
- License State
- MA
- Taxonomy Description
- A nuclear medicine physician who specializes in nuclear imaging and therapy.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207U00000X | Allopathic & Osteopathic Physicians | Nuclear Medicine | 238256 (MA) |
| 2 | 207UN0901X | Allopathic & Osteopathic Physicians | Nuclear Medicine | 238256 (MA) |
| 3 | 207UN0903X | Allopathic & Osteopathic Physicians | Nuclear Medicine | 238256 (MA) |
| 4 | 2085N0904X | Allopathic & Osteopathic Physicians | Radiology | 238256 (MA) |
| 5 | 2085R0001X | Allopathic & Osteopathic Physicians | Radiology | 238256 (MA) |
| 6 | 2085R0203X | Allopathic & Osteopathic Physicians | Radiology | 238256 (MA) |
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1033364336, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1033364336, enumerated as an "individual" on December 01, 2008.
The provider is located at 51 WINDEMERE RD WELLESLEY, MA 02481 and the phone number is (401) 316-3166.
Nuclear Medicine with taxonomy code 207UN0902X and a focus in Nuclear Imaging & Therapy.
