DR. RONALD S OSER M.D.
NPI 1336148162
Ophthalmology in Laurel, MD
NPI Status: Active since July 14, 2005
Contact Information
14201 LAUREL PARK DR
SUITE 208
LAUREL, MD
ZIP 20707
Phone: (301) 498-6616
Fax: (301) 498-8030
- Individual
- Male
- Ophthalmology
- CLIA Number: 21D2071149
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 01-05-2028
About RONALD OSER
This page provides the complete NPI Profile along with additional information for Ronald Oser, a provider established in Laurel, Maryland with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1336148162 assigned on July 2005. The practitioner's primary taxonomy code is 207W00000X with license number D15976 (MD). The provider is registered as an individual and his NPI record was last updated 17 years ago.
- NPI
- 1336148162
- Provider Name
- DR. RONALD S OSER M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 14201 LAUREL PARK DR SUITE 208 LAUREL, MD 20707
- Location Phone
- (301) 498-6616
- Location Fax
- (301) 498-8030
- Mailing Address
- 14201 LAUREL PARK DR SUITE 208 LAUREL, MD 20707
- Mailing Phone
- (301) 498-6616
- Mailing Fax
- (301) 498-8030
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-14-2005
- Last Update Date
- 06-15-2009
- Code Navigator
Ophthalmologists like Ronald Oser specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.
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
Ophthalmology
- Taxonomy Code
- 207W00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D15976
- License State
- MD
- Taxonomy Description
- An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
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.
*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 |
|---|---|---|---|
| B70179 | MEDICARE UPIN (02) | ||
| 118081900 | MEDICAID (05) | MD | |
| 25432 | OTHER (01) | MAMSI GROUP | |
| 005N | MEDICARE ID-TYPE UNSPECIFIED (04) | MD | |
| 6699 | OTHER (01) | MD | BLUE SHIELD |
| 675821002 | OTHER (01) | CIGNA | |
| 20480001 | OTHER (01) | DC | BLUE SHIELD |
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
- 21D2071149
- Facility Type
- Physician Office
- Certificate Effective Date
- January 06, 2026
- Certificate Expiration Date
- January 05, 2028
- Laboratory Director
- RONALD OSER
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Ronald Oser 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 1336148162, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).
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 58 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.
LAUREL, MD 20707
LAUREL, MD 20707
LAUREL, MD 20707
LAUREL, MD 20707
LAUREL, MD 20707
LAUREL, MD 20707
LAUREL, MD 20707
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1336148162, enumerated as an "individual" on July 14, 2005.
The provider is located at 14201 LAUREL PARK DR SUITE 208 LAUREL, MD 20707 and the phone number is (301) 498-6616.
Ophthalmology with taxonomy code 207W00000X.
The provider might be accepting Accepts: Medicare, Medicaid, Blue Cross Blue Shield and. Please consult your insurance carrier or call the provider to verify.
