JOHN ROBERT WERTHER DMD MD
NPI 1912089871
Oral & Maxillofacial Surgery in Nashville, TN
NPI Status: Active since October 19, 2006
Contact Information
300 20TH AVE N
SUITE 606
NASHVILLE, TN
ZIP 37203
Phone: (615) 284-5650
Fax: (615) 284-5653
- Individual
- Male
- Oral & Maxillofacial Surgery
- Accepts Insurance
- PECOS Enrolled
- Opted-Out Medicare
About JOHN WERTHER
This page provides the complete NPI Profile along with additional information for John Werther, a provider established in Nashville, Tennessee with a medical specialization in Oral & Maxillofacial Surgery. The healthcare provider is registered in the NPI registry with number 1912089871 assigned on October 2006. The practitioner's primary taxonomy code is 204E00000X with license number 21127 (TN). The provider is registered as an individual and his NPI record was last updated April 2025.
- NPI
- 1912089871
- Provider Name
- JOHN ROBERT WERTHER DMD MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 300 20TH AVE N SUITE 606 NASHVILLE, TN 37203
- Location Phone
- (615) 284-5650
- Location Fax
- (615) 284-5653
- Mailing Address
- 300 20TH AVE N SUITE 606 NASHVILLE, TN 37203
- Mailing Phone
- (615) 284-5650
- Mailing Fax
- (615) 284-5653
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-19-2006
- Last Update Date
- 04-10-2025
- Code Navigator
The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. John Werther opted out of Medicare effective on 04-01-2014 until 04-01-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.
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
Oral & Maxillofacial Surgery
- Taxonomy Code
- 204E00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 21127
- License State
- TN
- Taxonomy Description
- Oral and maxillofacial surgeons are trained to recognize and treat a wide spectrum of diseases, injuries and defects in the head, neck, face, jaws and the hard and soft tissues of the oral and maxillofacial region. They are also trained to administer anesthesia, and provide care in an office setting. They are trained to treat problems such as the extraction of wisdom teeth, misaligned jaws, tumors and cysts of the jaw and mouth, and to perform dental implant surgery.
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 | 1223S0112X | Dental Providers | Dentist | 5424 (TN) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Guardian Basics for Families and Individuals - PPO
- Guardian Essentials for Families and Individuals - PPO
- Guardian Preventive Plus for Families and Individuals - PPO
- Guardian Select for Families and Individuals - PPO
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 |
|---|---|---|---|
| 4002094 | OTHER (01) | TN | BLUE CROSS BLUE SHIELD |
| 1477635324 | OTHER (01) | GROUP NPI |
Medicare Participation & PECOS Enrollment Status
John Werther is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 04-01-2014
Opt-Out End Date: 04-01-2026
Eligible to Order and Refer? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: No
Reviews for JOHN ROBERT WERTHER DMD MD
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 9 | 1 | 2 | 0 | 8 | 9 | 8 | 7 | 1 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 9 | 2 | 2 | 0 | 8 | 18 | 8 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 9 + 2 + 2 + 0 + 8 + 1 + 8 + 8 + 1 + 4 + 24 = 69 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 69 = 1 | 1 | ||||||||
The NPI number 1912089871 is valid because the calculated check digit 1 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1104810274 | DR. JAMES BREVARD HAYNES MD Individual | Internal Medicine (Sleep Medicine) | 300 20TH AVE N SUITE G-8 NASHVILLE, TN 37203 (615) 284-7533 |
| 1225023393 | MID-STATE PULMONARY ASSOCIATES, PLLC Organization | Internal Medicine (Pulmonary Disease) | 300 20TH AVE N SUITE 503 NASHVILLE, TN 37203 (615) 284-5098 |
| 1679568745 | NASHVILLE INPATIENT MANAGEMENT SERVICES, PLC Organization | Internal Medicine (Critical Care Medicine) | 300 20TH AVE N SUITE 503 NASHVILLE, TN 37203 (615) 284-2894 |
| 1235105248 | GURLEY SURGERY CENTER Organization | Clinic/Center (Ambulatory Surgical) | 300 20TH AVE N SUITE 102 NASHVILLE, TN 37203 (615) 284-1500 |
| 1235106170 | DR. ANNE C WISE MD Individual | Specialist | 300 20TH AVE N SUITE302 NASHVILLE, TN 37203 (615) 340-4655 |
| 1275509119 | DR. SHARON M PIPER MD Individual | Specialist | 300 20TH AVE N SUITE 302 NASHVILLE, TN 37203 (615) 340-4655 |
| 1669449427 | DR. SHALI R SCOTT MD Individual | Specialist | 300 20TH AVE N SUITE 302 NASHVILLE, TN 37203 (615) 340-4655 |
| 1558304725 | DR. MANJU KANDULA M.D. Individual | Psychiatry & Neurology (Neurology) | 300 20TH AVE N 9TH FLOOR NASHVILLE, TN 37203 (615) 284-1400 |
| 1891739322 | ROBERT DALE PILKINTON JR. M.D. Individual | Ophthalmology | 300 20TH AVE N SUITE 504 NASHVILLE, TN 37203 (615) 329-7890 |
| 1801831714 | DR. PARMINDER BOLINA M.D. Individual | Internal Medicine | 300 20TH AVE N 9TH FLOOR NASHVILLE, TN 37203 (615) 284-1400 |
| 1669417127 | JOYCE EYLER P.A. Individual | Physician Assistant | 300 20TH AVE N 9TH FLOOR NASHVILLE, TN 37203 (615) 284-1400 |
| 1417992769 | DR. ALLEGRA PATTEN M.D. Individual | Psychiatry & Neurology (Neurology) | 300 20TH AVE N 7TH FLOOR NASHVILLE, TN 37203 (615) 284-1400 |
| 1215966544 | MS. AMY L COX N.P. Individual | Nurse Practitioner (Acute Care) | 300 20TH AVE N SUITE 301 NASHVILLE, TN 37203 (615) 329-0570 |
| 1285651182 | FRIST SCOVILLE MEDICAL GROUP Organization | Clinic/Center (Ambulatory Surgical) | 300 20TH AVE N 8TH FLOOR NASHVILLE, TN 37203 (615) 284-1335 |
| 1093736720 | TAMMY S JACKSON NP Individual | Nurse Practitioner | 300 20TH AVE N STE 301 NASHVILLE, TN 37203 (615) 329-0570 |
| 1841202652 | DR. CORNELIA R GRAVES MD Individual | Specialist | 300 20TH AVE N SUITE 702 NASHVILLE, TN 37203 (615) 284-8636 |
| 1578575486 | DR. AUDREY H KANG M.D. Individual | Specialist | 300 20TH AVE N SUITE 702 NASHVILLE, TN 37203 (615) 284-8636 |
| 1215040837 | DR. HAROLD B COLLINS M.D Individual | Specialist | 300 20TH AVE N SUITE 702 NASHVILLE, TN 37203 (615) 284-8636 |
| 1356434864 | JANE E HURTIG NP Individual | Nurse Practitioner | 300 20TH AVE N STE 301 NASHVILLE, TN 37203 (615) 329-0570 |
| 1902991433 | NASHVILLE NEUROSCIENCE GROUP Organization | Specialist | 300 20TH AVE N STE 106 NASHVILLE, TN 37203 (615) 284-4680 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1912089871, enumerated in the NPI registry as an "individual" on October 19, 2006
The provider is located at 300 20th Ave N Suite 606 Nashville, Tn 37203 and the phone number is (615) 284-5650
The provider's speciality is Oral & Maxillofacial Surgery with taxonomy code 204E00000X
The provider might be accepting Accepts: Guardian, Blue Cross Blue Shield, Medicare and. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).
No, the provider signed an affidavit on April 01, 2014 to opt-out of the Medicare program. The provider is excluded from the Medicare program until April 01, 2026.
This NPI record was last updated on October 19, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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