PHYSICIANS PRACTICE AND RESEARCH, LLC
NPI 1851565444
Internal Medicine - Nephrology in Lansdowne, VA
NPI Status: Active since April 15, 2008
Contact Information
19415 DEERFIELD AVE
SUITE #107
LANSDOWNE, VA
ZIP 20176
Phone: (703) 723-5555
Fax: (703) 562-6996
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Organization
- Internal Medicine
- Nephrology
- CLIA Number: 49D2338441
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 02-10-2028
About PHYSICIANS PRACTICE AND RESEARCH, LLC
This page provides the complete NPI Profile along with additional information for Physicians Practice And Research, Llc, an internist established in Lansdowne, Virginia operating as a Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1851565444 assigned on April 2008. The practitioner's primary taxonomy code is 207RN0300X with license number 0101234619 (VA). The provider is registered as an organization and their NPI record was last updated June 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Oscar Adler Md (Owner)
- NPI
- 1851565444
- Provider Name
- PHYSICIANS PRACTICE AND RESEARCH, LLC
- Entity Type
- Organization
- Location Address
- 19415 DEERFIELD AVE SUITE #107 LANSDOWNE, VA 20176
- Location Phone
- (703) 723-5555
- Location Fax
- (703) 562-6996
- Mailing Address
- 9104 STREAMVIEW LN VIENNA, VA 22182
- Mailing Phone
- (703) 723-5555
- Mailing Fax
- (703) 562-6996
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-15-2008
- Last Update Date
- 06-17-2026
- Code Navigator
An internist like Physicians Practice And Research, Llc 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 Nephrology
- Taxonomy Code
- 207RN0300X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 0101234619
- License State
- VA
- Taxonomy Description
- An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
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 | 207RN0300X | Allopathic & Osteopathic Physicians | Internal Medicine | D0063101 (MD) |
Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 49D2338441
- Facility Type
- Physician Office
- Certificate Effective Date
- February 11, 2026
- Certificate Expiration Date
- February 10, 2028
- Laboratory Director
- DR. OSCAR ADLER
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Physicians Practice And Research, Llc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
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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 1851565444, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).
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 56 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
LANSDOWNE, VA 20176
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1851565444, enumerated as an "organization" on April 15, 2008.
The provider is located at 19415 DEERFIELD AVE SUITE #107 LANSDOWNE, VA 20176 and the phone number is (703) 723-5555.
Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.
