DR. GREGORY JOHN KEISER DMD
NPI 1306801006
Dentist - Oral and Maxillofacial Surgery in Morristown, NJ

NPI Status: Active since April 18, 2006

Contact Information

290 MADISON AVENUE
MORRISTOWN, NJ
ZIP 07960
Phone: (973) 538-5338
Fax: (973) 538-5343

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  • Individual
  • Male
  • Dentist
  • Oral and Maxillofacial Surgery
  • Accepts Insurance

About GREGORY KEISER

This page provides the complete NPI Profile along with additional information for Gregory Keiser, a provider established in Morristown, New Jersey with a medical specialization in Dentist, focusing in oral and maxillofacial surgery . The healthcare provider is registered in the NPI registry with number 1306801006 assigned on April 2006. The practitioner's primary taxonomy code is 1223S0112X with license number DS026629L (PA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1306801006
Provider Name
DR. GREGORY JOHN KEISER DMD
Gender
Male
Entity Type
Individual
Location Address
290 MADISON AVENUE MORRISTOWN, NJ 07960
Location Phone
(973) 538-5338
Location Fax
(973) 538-5343
Mailing Address
25 MAUREEN ROAD EAST HANOVER, NJ 07936
Mailing Phone
(973) 515-9404
Mailing Fax
(973) 538-5343
Is Sole Proprietor?
Yes
Enumeration Date
04-18-2006
Last Update Date
08-23-2019
Code Navigator

A dentist like Gregory Keiser is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist Oral and Maxillofacial Surgery

Taxonomy Code
1223S0112X
Type
Dental Providers
License No.
DS026629L
License State
PA
Taxonomy Description
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.

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)
11223S0112XDental Providers

Dentist
Oral and Maxillofacial Surgery

16833 (NJ)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO
  • BlueCare Dental? 1D - PPO
  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO
  • BlueCare Dental? 1D - PPO
  • BlueCare Dental 1D - PPO
  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO
  • HRI Essential Plus Plan - HMO
  • HRI Essential Plus Plan - PPO
  • HRI Preventive Family Plan - HMO
  • HRI Preventive Family Plan - PPO
  • HRI Total Care Plan - HMO
  • HRI Total Care Plan - PPO
  • Humana Dental Smart Choice - PPO
  • Humana Dental Smart Choice - Basic - PPO
  • Humana Dental Smart Choice - High - PPO
  • Humana Dental Smart Choice - Lite - PPO
  • Humana Dental Smart Choice - Low - PPO
  • Paramount Dental Essential Plus Plan - EPO
  • Paramount Dental Preventive Family Plan - EPO
  • Paramount Dental Total Care Plan - EPO
  • Alabama Preferred Plan - PPO
  • Alabama Preferred Plan (Pediatric Only) - PPO
  • Alabama Preferred Plus Plan - PPO
  • Alabama Preferred Plus Plan (Pediatric Only) - PPO
  • Alabama Wellness Essentials Plan - PPO
  • Florida Preferred Plan - PPO
  • Florida Preferred Plan (Pediatric Only) - PPO
  • Florida Preferred Plus Plan - PPO
  • Florida Preferred Plus Plan (Pediatric Only) - PPO
  • Florida Wellness Essentials Plan - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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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 1306801006, 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 44. The final step is to find the difference between that total and the next multiple of ten (50 - 44 = 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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
0
Doubled → 0
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
0
Unchanged
Pos 9
0
Doubled → 0
Check
6
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 0 → 0 8 → 16 → 7 1 → 2 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 0 + 6 + 1 + 6 + 0 + 2 + 0 + 0 + 24 = 44

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 44 is 50. The difference is the calculated check digit.

50 - 44 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1306801006.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Dentist (General Practice)
290 MADISON AVENUE, BLDG. 1-B
MORRISTOWN, NJ 07960
Dentist (General Practice)
290 MADISON AVENUE, BLDG. 1-B
MORRISTOWN, NJ 07960
Dentist (General Practice)
290 MADISON AVENUE, BLDG 1-B
MORRISTOWN, NJ 07960

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306801006, enumerated as an "individual" on April 18, 2006.

The provider is located at 290 MADISON AVENUE MORRISTOWN, NJ 07960 and the phone number is (973) 538-5338.

Dentist with taxonomy code 1223S0112X and a focus in Oral and Maxillofacial Surgery.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Montana, Blue Cross. Please consult your insurance carrier or call the provider to verify.