DR. ELIZABETH DENNIS D.O.
NPI 1073714721
Internal Medicine in Westbrook, ME

NPI Status: Active since May 30, 2007

Contact Information

11 ROCK ROW STE 320
WESTBROOK, ME
ZIP 04092
Phone: (207) 303-3300
Fax: (207) 250-2139

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  • Individual
  • Female
  • Years of Experience 21
  • Internal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ELIZABETH DENNIS

This page provides the complete NPI Profile along with additional information for Elizabeth Dennis, an internist established in Westbrook, Maine with a medical specialization in Internal Medicine and more than 21 years of experience. She graduated from Midwestern University, Chicago College Of Osteopathic Med in 2005. The healthcare provider is registered in the NPI registry with number 1073714721 assigned on May 2007. The practitioner's primary taxonomy code is 207R00000X with license number 2067 (ME). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1073714721
Provider Name
DR. ELIZABETH DENNIS D.O.
Gender
Female
Entity Type
Individual
Location Address
11 ROCK ROW STE 320 WESTBROOK, ME 04092
Location Phone
(207) 303-3300
Location Fax
(207) 250-2139
Mailing Address
PO BOX 911 BRATTLEBORO, VT 05302
Mailing Phone
(207) 303-3200
Medical School Name
MIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduation Year
2005
Is Sole Proprietor?
No
Enumeration Date
05-30-2007
Last Update Date
04-16-2026
Code Navigator

An internist like Elizabeth Dennis 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

  • 105 Topsham Fair Mall Rd Unit 1
    Topsham, ME 04086
    (207) 303-3300
  • 2 Independence Dr
    Kennebunk, ME 04043
    (207) 303-3300
  • 15 Rock Row Ste 110
    Westbrook, ME 04092
    (207) 303-3300
  • 11 Rock Row Ste 150
    Westbrook, ME 04092
    (207) 303-3300
  • 11 Rock Row Ste 120
    Westbrook, ME 04092
    (207) 303-3300
  • 155 Borthwick Ave Ste C
    Portsmouth, NH 03801
    (603) 828-0100

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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
2067
License State
ME
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive 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

24444 (NH)

Insurance Plans Accepted

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

  • Choice Bronze HSA - EPO
  • Choice Bronze HSA + Vision + Adult Dental - EPO
  • Clear Silver - EPO
  • Clear Silver + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Anthem Bronze Preferred Blue PPO 6000/20%/8000 w/HSA - PPO
  • Anthem Bronze Preferred Blue PPO 7000/50%/8000 w/HSA - PPO
  • Anthem Bronze Preferred Blue PPO 7500/30%/10000 Value - PPO
  • Anthem Bronze Preferred Blue PPO 8500/50%/9200 - PPO
  • Anthem Gold Preferred Blue PPO 1000/20%/7500 - PPO
  • Anthem Gold Preferred Blue PPO 2000/0%/6500 RxD - PPO
  • Anthem Gold Preferred Blue PPO 2000/10%/4600 w/HSA - PPO
  • Anthem Gold Preferred Blue PPO 2000/10%/7500 - PPO
  • Anthem Gold Preferred Blue PPO 2000/20%/4600 w/HSA - PPO
  • Anthem Gold Preferred Blue PPO 3000/0%/7500 RxD - PPO
  • Anthem Bronze Pathway X Enhanced 6000/35% HSA - HMO
  • Anthem Bronze Pathway X Enhanced 7000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway X Enhanced 7500/50% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
  • Anthem Catastrophic Pathway X Enhanced - HMO
  • Anthem Gold Pathway X Enhanced 1200/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Gold Pathway X Enhanced 2000/25% ($0 Virtual PCP + $0 Select Drug) Standard - HMO
  • Anthem Gold Pathway X Enhanced 700/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Bronze Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Silver Pathway X Enhanced 4000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway X Enhanced 4500/20% HSA - HMO
  • WellSense Clarity NH Bronze 6500 HSA + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Bronze 7500 HSA + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Bronze 7600 HSA + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Gold 2000 + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Silver 0 Deductible + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Silver 3400 + $0 Rx List + 24/7 Nurse Advice - HMO
  • WellSense Clarity NH Silver 6000 + $0 Rx List + 24/7 Nurse Advice - HMO

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
433988399MEDICAID (05)ME 

Medicare Participation & PECOS Enrollment Status

Elizabeth Dennis 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.

Elizabeth Dennis 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: 1557429776

    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: I20081016000416, I20230815001564

    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.

Ct scan of abdomen and pelvis with contrast

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

This service was performed 30 times for 27 patients

Ct scan of chest with contrast

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

This service was performed 43 times for 40 patients

Ct scan of chest without contrast

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

This service was performed 12 times for 12 patients

Established patient office or other outpatient visit, 30-39 minutes

This 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 24 times for 24 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 21 times for 21 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

This service was performed 4,455 times for 45 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 11 times for 11 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 19 times for 19 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

This service was performed 19 times for 19 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $32.2 for a new patient copayment and $24.79 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 04092 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $128.83
  • Minimum New Patient Price $56.28
  • Maximum New Patient Price $169.96
  • Average New Patient Copayment $32.2
  • Minimum New Patient Copayment $14.07
  • Maximum New Patient Copayment $42.49

Established Patients Visit Costs *

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

  • Average Established Patient Price $99.18
  • Minimum Established Patient Price $18.22
  • Maximum Established Patient Price $138.92
  • Average Established Patient Copayment $24.79
  • Minimum Established Patient Copayment $4.55
  • Maximum Established Patient Copayment $34.73

* 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.

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. Elizabeth Dennis is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MAINE MEDICAL CENTER22 BRAMHALL ST
PORTLAND, ME 04102
(207) 662-0111Acute Care Hospitals
MID COAST HOSPITAL123 MEDICAL CENTER DRIVE
BRUNSWICK, ME 04011
(207) 729-0181Acute Care Hospitals
LINCOLNHEALTH35 MILES STREET
DAMARISCOTTA, ME 04543
(207) 563-1234Critical Access Hospitals
PORTSMOUTH REGIONAL HOSPITAL333 BORTHWICK AVE
PORTSMOUTH, NH 03801
(603) 436-5110Acute 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 1073714721, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
Check
1
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 7 → 14 → 5 7 → 14 → 5 4 → 8 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 4 + 3 + 1 + 4 + 1 + 8 + 7 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1073714721.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Surgery (Surgical Oncology)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Nurse Practitioner
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Internal Medicine (Hematology & Oncology)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Physician Assistant (Surgical)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Surgery (Surgical Oncology)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Internal Medicine (Hematology & Oncology)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Social Worker (Clinical)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Physician Assistant
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Nurse Practitioner (Family)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Nurse Practitioner (Family)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Dietitian, Registered
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Nurse Practitioner
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Nurse Practitioner (Family)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Internal Medicine (Hematology & Oncology)
11 ROCK ROW STE 320
WESTBROOK, ME 04092
Dietitian, Registered
11 ROCK ROW STE 320
WESTBROOK, ME 04092

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073714721, enumerated as an "individual" on May 30, 2007.

The provider is located at 11 ROCK ROW STE 320 WESTBROOK, ME 04092 and the phone number is (207) 303-3300.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Ambetter from NH Healthy Families, Anthem Blue. Please consult your insurance carrier or call the provider to verify.

Elizabeth Dennis is affiliated with: MAINE MEDICAL CENTER, MID COAST HOSPITAL, LINCOLNHEALTH and PORTSMOUTH REGIONAL HOSPITAL.