CATHRINE A STARK
NPI 1518455948
Podiatrist - Foot & Ankle Surgery in Portsmouth, NH
NPI Status: Active since May 01, 2018
Contact Information
330 BORTHWICK AVE STE 201
PORTSMOUTH, NH
ZIP 03801
Phone: (215) 660-3200
Fax: (603) 380-7890
- Individual
- Female
- Years of Experience 9
- Podiatrist
- Foot & Ankle Surgery
- Accepts Insurance
- May Accept Medicare Approved Payment
- PECOS Enrolled
About CATHRINE STARK
This page provides the complete NPI Profile along with additional information for Cathrine Stark, a provider established in Portsmouth, New Hampshire with a medical specialization in Podiatrist, focusing in foot & ankle surgery and more than 9 years of experience. She graduated from Temple University School Of Podiatric Medicine in 2018. The healthcare provider is registered in the NPI registry with number 1518455948 assigned on May 2018. The practitioner's primary taxonomy code is 213ES0103X with license number 0391 (NH). The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1518455948
- Provider Name
- CATHRINE A STARK
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 330 BORTHWICK AVE STE 201 PORTSMOUTH, NH 03801
- Location Phone
- (215) 660-3200
- Location Fax
- (603) 380-7890
- Mailing Address
- 330 BORTHWICK AVE STE 201 PORTSMOUTH, NH 03801
- Medical School Name
- TEMPLE UNIVERSITY SCHOOL OF PODIATRIC MEDICINE
- Graduation Year
- 2018
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-01-2018
- Last Update Date
- 05-18-2026
- 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
Podiatrist Foot & Ankle Surgery
- Taxonomy Code
- 213ES0103X
- Type
- Podiatric Medicine & Surgery Service Providers
- License No.
- 0391
- License State
- NH
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- 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 Gold Preferred Blue PPO 500/30%/9000 - PPO
- Anthem Platinum Preferred Blue PPO 250/10%/3500 - PPO
- Anthem Silver Preferred Blue PPO 2500/30%/10000 Value - PPO
- Anthem Silver Preferred Blue PPO 3000/30%/9000 Value - PPO
- Anthem Silver Preferred Blue PPO 3500/20%/10000 - PPO
- Anthem Silver Preferred Blue PPO 3500/20%/7250 w/HSA - PPO
- Anthem Silver Preferred Blue PPO 4000/0%/9000 - PPO
- Anthem Silver Preferred Blue PPO 4000/0%/9000 RxD - PPO
- Anthem Silver Preferred Blue PPO 4000/10%/7250 w/HSA - PPO
- Anthem Silver Preferred Blue PPO 4000/20%/8500 - 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
- Anthem Silver Pathway X Enhanced 5500/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
- Anthem Bronze Access Blue New England HMO 6000/20%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 7500/30%/10000 Value - HMO
- Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
- Anthem Bronze Pathway X HMO 6000/20%/8000 w/HSA - HMO
- Anthem Bronze Pathway X HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Pathway X HMO 7500/30%/10000 Value - HMO
- Anthem Bronze Pathway X HMO 8500/50%/9200 - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Cathrine Stark is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.
Cathrine Stark 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
PECOS PAC ID: 8921487398
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: I20231010002914
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? Maybe
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: No
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.
Aspiration and/or injection of fluid from small joint
Complicated or multiple drainage of skin abscess
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
Injection into skin growth, 1-7 growths
Injection into tendon or ligament
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg
Limited ultrasound scan of joint or other extremity structure except blood vessels
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
Permanent removal fingernail or toenail
Simple separation of fingernail or toenail from nail bed, first nail
X-ray of ankle, minimum of 3 views
X-ray of foot, minimum of 3 views
This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.
This service was performed 24 times for 20 patientsThis procedure involves draining one or more skin abscesses, which are pockets of pus that form due to an infection. The process includes making a small cut on the abscess, removing the pus, and cleaning the area to promote healing and prevent further infection.
This service was performed 12 times for 12 patientsThis 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 266 times for 198 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 114 times for 79 patientsThis procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.
This service was performed 14 times for 13 patientsAn injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.
This service was performed 18 times for 13 patientsThis injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.
This service was performed 170 times for 59 patientsA limited ultrasound scan of a joint or other extremity structure lacking blood vessels is a non-invasive procedure that uses sound waves to create images of the inside of your body. This helps in diagnosing and monitoring conditions related to your joints or other similar structures.
This service was performed 27 times for 23 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 111 times for 111 patientsThis 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 154 times for 154 patientsPermanent removal of a fingernail or toenail, also known as avulsion, is a procedure performed to treat nail infections or severe ingrown nails. The nail is carefully removed under local anesthesia. After removal, a chemical is applied to prevent nail regrowth, ensuring the issue does not recur.
This service was performed 28 times for 23 patientsThis procedure involves the gentle removal of the first nail from its bed, often due to injury or infection. It's performed under local anesthesia to minimize discomfort. The nail will gradually regrow over time.
This service was performed 26 times for 25 patientsAn ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.
This service was performed 17 times for 12 patientsAn X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
This service was performed 163 times for 112 patientsFind 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. Cathrine Stark is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| PORTSMOUTH REGIONAL HOSPITAL | 333 BORTHWICK AVE PORTSMOUTH, NH 03801 | (603) 436-5110 | Acute 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 1518455948, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 72 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518455948, enumerated as an "individual" on May 01, 2018.
The provider is located at 330 BORTHWICK AVE STE 201 PORTSMOUTH, NH 03801 and the phone number is (215) 660-3200.
Podiatrist with taxonomy code 213ES0103X and a focus in Foot & Ankle Surgery.
The provider might be accepting Accepts: Anthem Blue Cross and Blue Sheld and Anthem Blue. Please consult your insurance carrier or call the provider to verify.
Cathrine Stark is affiliated with: PORTSMOUTH REGIONAL HOSPITAL.
