DR. JENNIFER PHEMISTER M.D.
NPI 1598008542
Internal Medicine - Gastroenterology in Maryville, TN

NPI Status: Active since March 28, 2013

Contact Information

355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN
ZIP 37804
Phone: (865) 980-5060
Fax: (865) 980-5066

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  • Individual
  • Female
  • Years of Experience 14
  • Internal Medicine
  • Gastroenterology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About JENNIFER PHEMISTER

This page provides the complete NPI Profile along with additional information for Jennifer Phemister, an internist established in Maryville, Tennessee with a medical specialization in Internal Medicine, focusing in gastroenterology and more than 14 years of experience. The healthcare provider is registered in the NPI registry with number 1598008542 assigned on March 2013. The practitioner's primary taxonomy code is 207RG0100X with license number 52396 (TN). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1598008542
Provider Name
DR. JENNIFER PHEMISTER M.D.
Gender
Female
Entity Type
Individual
Location Address
355 BMH PHYSICIANS OFFICE BLDG MARYVILLE, TN 37804
Location Phone
(865) 980-5060
Location Fax
(865) 980-5066
Mailing Address
103 W BROADWAY AVE MARYVILLE, TN 37801
Mailing Phone
(865) 273-1752
Mailing Fax
(865) 980-5066
Medical School Name
OTHER
Graduation Year
2013
Is Sole Proprietor?
No
Enumeration Date
03-28-2013
Last Update Date
08-07-2024
Code Navigator

An internist like Jennifer Phemister is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 240 Medical Park Blvd
    Bristol, TN 37620
    (423) 990-2424
  • 907 E LaMar Alexander Pkwy
    Maryville, TN 37804
    (865) 980-4897
  • 325 N. State of Franklin
    Johnson City, TN 37614
    (423) 439-6283
  • 435 2nd St
    Newport, TN 37821
    (423) 625-2200
  • 107 Omni Dr Ste A
    Seneca, SC 29672
    (864) 695-6697

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

Internal Medicine Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
52396
License State
TN
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

52396 (TN)
2207RG0100XAllopathic & Osteopathic Physicians

Internal Medicine
Gastroenterology

40908 (SC)
3208M00000XAllopathic & Osteopathic Physicians

Hospitalist

MD0000052396 (TN)

Insurance Plans Accepted

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

  • Blue Direction Bronze 1 - POS
  • Blue Direction Silver 1 - POS
  • Blue Direction Silver 1 + Adult Vision - POS
  • Blue Direction Silver 2 - POS
  • Blue Direction Standard Expanded Bronze - POS
  • Blue Direction Standard Gold - POS
  • Blue Direction Standard Silver - POS
  • Blue VirtuConnect Bronze 1 - EPO
  • Blue VirtuConnect Gold 1 - EPO
  • Blue VirtuConnect Silver 1 - EPO
  • BlueEssentials Bronze 4 - EPO
  • BlueEssentials Bronze 6 - EPO
  • BlueEssentials Gold 1 - EPO
  • BlueEssentials Gold 5 - EPO
  • BlueEssentials Silver 14 - EPO
  • BlueEssentials Silver 14 + Adult Vision - EPO
  • BlueEssentials Silver 40 - EPO
  • BlueEssentials Standard Expanded Bronze - EPO
  • BlueEssentials Standard Gold - EPO
  • BlueEssentials Standard Silver - EPO
  • BlueCross B16S $50 PCP Copay + $0 virtual care from Teladoc Health� - EPO
  • BlueCross G08S $30 PCP Copay + $0 virtual care from Teladoc Health � - EPO
  • BlueCross S26S $40 PCP Copay + $0 virtual care from Teladoc Health� - EPO
  • InHealth Basic 1 - HMO
  • InHealth Basic 1 + Adult Vision - HMO
  • InHealth Basic 2 - HMO
  • InHealth Basic Plus Standard - HMO
  • InHealth Basic Standard - HMO

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

Medicare Participation & PECOS Enrollment Status

Jennifer Phemister is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Jennifer Phemister 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

  • PECOS PAC ID: 1052623782

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20230524002690, I20240725001444, I20251029004514

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • 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.

Advance care planning, first 30 minutes

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

This service was performed 168 times for 163 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

This service was performed 18 times for 17 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

This service was performed 48 times for 45 patients

Biopsy of large bowel using a flexible endoscope

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

This service was performed 35 times for 35 patients

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 215 patients

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 36 times for 36 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

This service was performed 16 times for 16 patients

Diagnostic exam of large bowel using a flexible endoscope

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

This service was performed 17 times for 17 patients

Established patient office or other outpatient visit, 20-29 minutes

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 13 times for 13 patients

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 137 times for 89 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 54 times for 42 patients

Hospital discharge day management, more than 30 minutes

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

This service was performed 29 times for 28 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 14 times for 14 patients

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 256 times for 244 patients

Initial hospital observation care per day, typically 70 minutes

This service involves a healthcare professional closely monitoring your health condition during your hospital stay. It typically lasts for about 70 minutes each day. This helps in timely detection of any changes in your health, allowing for immediate response and treatment.

This service was performed 63 times for 63 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 18 times for 18 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

This service was performed 36 times for 36 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 300 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $30.45 for a new patient copayment and $23.4 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 37804 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $121.8
  • Minimum New Patient Price $52.64
  • Maximum New Patient Price $160.89
  • Average New Patient Copayment $30.45
  • Minimum New Patient Copayment $13.16
  • Maximum New Patient Copayment $40.22

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $93.6
  • Minimum Established Patient Price $16.72
  • Maximum Established Patient Price $131.41
  • Average Established Patient Copayment $23.4
  • Minimum Established Patient Copayment $4.18
  • Maximum Established Patient Copayment $32.85

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Advance Care PlanningYesN/A
Implementation of practices/processes to develop advance care planning that includes: documenting the advance care plan or living will within the medical record, educating clinicians about advance care planning motivating them to address advance care planning needs of their patients, and how these needs can translate into quality improvement, educating clinicians on approaches and barriers to talking to patients about end-of-life and palliative care needs and ways to manage its documentation, as well as informing clinicians of the healthcare policy side of advance care planning.
Care Plan 95% 129
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker or provide an advance care plan
Implementation of medication management practice improvementsYesN/A
Manage medications to maximize efficiency, effectiveness and safety that could include one or more of the following: Reconcile and coordinate medications and provide medication management across transitions of care settings and eligible clinicians or groups; Integrate a pharmacist into the care team; and/or Conduct periodic, structured medication reviews.
Measurement and Improvement at the Practice and Panel LevelYesN/A
Measure and improve quality at the practice and panel level, such as the American Board of Orthopaedic Surgery (ABOS) Physician Scorecards, that could include one or more of the following: • Regularly review measures of quality, utilization, patient satisfaction and other measures that may be useful at the practice level and at the level of the care team or MIPS eligible clinician or group (panel); and/or • Use relevant data sources to create benchmarks and goals for performance at the practice level and panel level.
Participation in an AHRQ-listed patient safety organization.YesN/A
Participation in an AHRQ-listed patient safety organization.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Jennifer Phemister is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MEDINA HOSPITAL1000 EAST WASHINGTON STREET
MEDINA, OH 44256
(330) 721-5229Acute Care Hospitals
MCLEOD REGIONAL MEDICAL CENTER-PEE DEE555 E CHEVES ST BOX 8700
FLORENCE, SC 29506
(843) 777-2900Acute Care Hospitals
WELLMONT HOLSTON VALLEY MEDICAL CENTER130 WEST RAVINE ROAD
KINGSPORT, TN 37662
(423) 224-4000Acute Care Hospitals

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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 1598008542, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
2
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 9 → 18 → 9 0 → 0 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 0 + 0 + 1 + 6 + 5 + 8 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1598008542.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Internal Medicine (Gastroenterology)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Internal Medicine (Gastroenterology)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Internal Medicine (Gastroenterology)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Internal Medicine (Gastroenterology)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Internal Medicine (Gastroenterology)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Physician Assistant
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804
Nurse Practitioner (Family)
355 BMH PHYSICIANS OFFICE BLDG
MARYVILLE, TN 37804

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598008542, enumerated as an "individual" on March 28, 2013.

The provider is located at 355 BMH PHYSICIANS OFFICE BLDG MARYVILLE, TN 37804 and the phone number is (865) 980-5060.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

The provider might be accepting Accepts: BlueCross BlueShield of South Carolina, BlueCross. Please consult your insurance carrier or call the provider to verify.

Jennifer Phemister is affiliated with: MEDINA HOSPITAL, MCLEOD REGIONAL MEDICAL CENTER-PEE DEE and WELLMONT HOLSTON VALLEY MEDICAL CENTER.