WILLIAM HENSLEY MERWIN JR. M.D.
NPI 1215924691
Specialist in Knoxville, TN
NPI Status: Active since September 30, 2005
Contact Information
11201 WEST POINT DR
SUITE 103
KNOXVILLE, TN
ZIP 37934
Phone: (865) 777-1727
Fax: (865) 966-0942
- Individual
- Male
- Specialist
- PECOS Enrolled
About WILLIAM MERWIN
This page provides the complete NPI Profile along with additional information for William Merwin, a provider established in Knoxville, Tennessee with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1215924691 assigned on September 2005. The practitioner's primary taxonomy code is 174400000X with license number MD0000020891 (TN). The provider is registered as an individual and his NPI record was last updated 14 years ago.
- NPI
- 1215924691
- Provider Name
- WILLIAM HENSLEY MERWIN JR. M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 11201 WEST POINT DR SUITE 103 KNOXVILLE, TN 37934
- Location Phone
- (865) 777-1727
- Location Fax
- (865) 966-0942
- Mailing Address
- 11201 WEST POINT DR SUITE 103 KNOXVILLE, TN 37934
- Mailing Phone
- (865) 777-1727
- Mailing Fax
- (865) 966-0942
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-30-2005
- Last Update Date
- 04-26-2011
- 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
Specialist
- Taxonomy Code
- 174400000X
- Type
- Other Service Providers
- License No.
- MD0000020891
- License State
- TN
- Taxonomy Description
- An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
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.
*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 |
|---|---|---|---|
| C85511 | MEDICARE UPIN (02) | TN |
Medicare Participation & PECOS Enrollment Status
William Merwin 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), a Home Health Agency (HHA) and Power Mobility Devices.
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
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: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Professional service for preparation and provision of 1 or more antigens
Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing
Removal of impacted ear wax
Simple removal of skin debris and drainage of mastoid cavity
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 174 times for 120 patientsThis is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 80 times for 58 patientsThis service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
This service was performed 230 times for 13 patientsThis procedure involves a doctor removing impacted earwax (cerumen) from one or both ears. This is often done on the same day as hearing function tests. The process helps to clear the ear canal, improving hearing and ensuring accurate test results.
This service was performed 14 times for 14 patientsImpacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
This service was performed 47 times for 40 patientsThis procedure involves clearing out skin debris and draining fluid from the mastoid cavity, an air-filled space in the skull behind the ear. It's done to relieve discomfort, improve hearing, and prevent complications related to ear infections or other conditions.
This service was performed 23 times for 12 patientsReviews for WILLIAM HENSLEY MERWIN JR. M.D.
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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 | 2 | 1 | 5 | 9 | 2 | 4 | 6 | 9 | 1 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 2 | 5 | 18 | 2 | 8 | 6 | 18 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 2 + 5 + 1 + 8 + 2 + 8 + 6 + 1 + 8 + 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 1215924691 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 3 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1427045749 | LEONARD WILKINS BROWN M.D. Individual | Specialist | 11201 WEST POINT DR SUITE 103 KNOXVILLE, TN 37934 (865) 777-1727 |
| 1255371134 | MR. JERRY VANCE PAC Individual | Family Medicine | 11201 WEST POINT DR SUITE 102 FARRAGUT FAMILY PRACTICE KNOXVILLE, TN 37934 (865) 675-1953 |
| 1184704207 | OTOLARYNGOLOGY HEAD AND NECK SURGERY ASSOCIATES Organization | Specialist | 11201 WEST POINT DR SUITE 103 KNOXVILLE, TN 37934 (865) 777-1727 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1215924691, enumerated in the NPI registry as an "individual" on September 30, 2005
The provider is located at 11201 West Point Dr Suite 103 Knoxville, Tn 37934 and the phone number is (865) 777-1727
The provider's speciality is Specialist with taxonomy code 174400000X
The provider might be accepting Accepts: Medicare and Medicaid. 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), a Home Health Agency (HHA) and Power Mobility Devices.
The most common procedures or services performed by this practitioner are: Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Professional service for preparation and provision of 1 or more antigens, Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing, Removal of impacted ear wax and Simple removal of skin debris and drainage of mastoid cavity.
This NPI record was last updated on September 30, 2005. 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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