DAVID HAMLAR MD LLC
NPI 1720923238
Otolaryngology in Inver Grove Heights, MN
NPI Status: Active since April 21, 2026
Contact Information
8899 AVIARY PATH
INVER GROVE HEIGHTS, MN
ZIP 55077
Phone: (657) 204-3504
Fax: (651) 681-9761
- Organization
- Otolaryngology
About DAVID HAMLAR MD LLC
This page provides the complete NPI Profile along with additional information for David Hamlar Md Llc, a provider established in Inver Grove Heights, Minnesota operating as a Otolaryngology. The healthcare provider is registered in the NPI registry with number 1720923238 assigned on April 2026. The practitioner's primary taxonomy code is 207Y00000X. The provider is registered as an organization and their NPI record was last updated May 2026. David Hamlar Md Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is David Hamlar Md (Owner)
- NPI
- 1720923238
- Provider Name
- DAVID HAMLAR MD LLC
- Entity Type
- Organization
- Location Address
- 8899 AVIARY PATH INVER GROVE HEIGHTS, MN 55077
- Location Phone
- (657) 204-3504
- Location Fax
- (651) 681-9761
- Mailing Address
- 8899 AVIARY PATH INVER GROVE HEIGHTS, MN 55077
- Mailing Phone
- (612) 801-4635
- Mailing Fax
- (651) 681-9761
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-21-2026
- Last Update Date
- 05-01-2026
- 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
Otolaryngology
- Taxonomy Code
- 207Y00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1720923238, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1720923238, enumerated as an "organization" on April 21, 2026.
The provider is located at 8899 AVIARY PATH INVER GROVE HEIGHTS, MN 55077 and the phone number is (657) 204-3504.
Otolaryngology with taxonomy code 207Y00000X.
