ERIK K ALEXANDER MD
NPI 1285692376
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA
NPI Status: Active since May 01, 2006
Contact Information
221 LONGWOOD AVENUE RFB2
BRIGHAM AND WOMEN'S HOSPITAL ENDOCRINOLOGY DIABETES AND
BOSTON, MA
ZIP 02115
Phone: (617) 732-5500
- Individual
- Male
- Years of Experience 29
- Internal Medicine
- Endocrinology, Diabetes & Metabolism
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About ERIK ALEXANDER
This page provides the complete NPI Profile along with additional information for Erik Alexander, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism and more than 29 years of experience. He graduated from Northwestern University Feinberg Medical School in 1997. The healthcare provider is registered in the NPI registry with number 1285692376 assigned on May 2006. The practitioner's primary taxonomy code is 207RE0101X with license number 159810 (MA). The provider is registered as an individual and his NPI record was last updated 13 years ago.
- NPI
- 1285692376
- Provider Name
- ERIK K ALEXANDER MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 221 LONGWOOD AVENUE RFB2 BRIGHAM AND WOMEN'S HOSPITAL ENDOCRINOLOGY DIABETES AND BOSTON, MA 02115
- Location Phone
- (617) 732-5500
- Mailing Address
- 111 CYPRESS ST BRIGHAM AND WOMEN'S HOSPITAL ENDOCRINOLOGY DIABETES AND BROOKLINE, MA 02445
- Mailing Phone
- (857) 307-0896
- Medical School Name
- NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
- Graduation Year
- 1997
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-01-2006
- Last Update Date
- 05-11-2012
- Code Navigator
An internist like Erik Alexander 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
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 Endocrinology, Diabetes & Metabolism
- Taxonomy Code
- 207RE0101X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 159810
- License State
- MA
- Taxonomy Description
- An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Anthem Bronze Access Blue New England HMO 5000/10%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 5000/20%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 6500/30%/9200 Value - HMO
- Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
- Anthem Gold Access Blue New England HMO 1000/20%/7500 - HMO
- Anthem Gold Access Blue New England HMO 2000/0%/6500 RxD - HMO
- Anthem Gold Access Blue New England HMO 2000/10%/4600 w/HSA - HMO
- Anthem Gold Access Blue New England HMO 2000/10%/7500 - HMO
- Anthem Gold Access Blue New England HMO 2000/20%/4600 w/HSA - HMO
- Anthem Gold Access Blue New England HMO 3000/0%/5500 RxD - HMO
- Anthem Gold Access Blue New England HMO 500/25%/7000 - HMO
- Anthem Platinum Access Blue New England HMO 250/10%/3500 - HMO
- Anthem Silver Access Blue New England HMO 2000/30%/9000 Value - HMO
- Anthem Silver Access Blue New England HMO 3000/20%/8500 - HMO
- Anthem Silver Access Blue New England HMO 3000/30%/9000 Value - HMO
- Anthem Silver Access Blue New England HMO 3500/20%/7250 w/HSA - HMO
- Anthem Silver Access Blue New England HMO 4000/0%/8500 - HMO
- Anthem Silver Access Blue New England HMO 4000/0%/8500 RxD - HMO
- Anthem Silver Access Blue New England HMO 4000/10%/7250 w/HSA - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Erik Alexander 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.
Erik Alexander 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: 9335031731
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: I20040329001550
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.
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Fine needle aspiration biopsy using ultrasound guidance, first growth
New patient office or other outpatient visit, 30-44 minutes
New patient office or other outpatient visit, 45-59 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 24 times for 24 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 169 times for 157 patientsThis 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 49 times for 39 patientsFine needle aspiration biopsy with ultrasound guidance is a procedure where a thin needle is inserted into a growth to extract a small sample. Ultrasound helps accurately locate the growth. This sample is then analyzed to determine the nature of the growth.
This service was performed 44 times for 37 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 12 times for 12 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 44 times for 44 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $36.02 for a new patient copayment and $27.79 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 02115 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $144.11
- Minimum New Patient Price $63.72
- Maximum New Patient Price $189.86
- Average New Patient Copayment $36.02
- Minimum New Patient Copayment $15.93
- Maximum New Patient Copayment $47.46
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $111.18
- Minimum Established Patient Price $21.07
- Maximum Established Patient Price $155.29
- Average Established Patient Copayment $27.79
- Minimum Established Patient Copayment $5.26
- Maximum Established Patient Copayment $38.82
* 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. Erik Alexander is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| BRIGHAM AND WOMEN'S HOSPITAL | 75 FRANCIS STREET BOSTON, MA 02115 | (617) 732-5500 | Acute Care Hospitals |
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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 | 8 | 5 | 6 | 9 | 2 | 3 | 7 | 6 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 16 | 5 | 12 | 9 | 4 | 3 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 1 + 6 + 5 + 1 + 2 + 9 + 4 + 3 + 1 + 4 + 24 = 64 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 64 = 6 | 6 | ||||||||
The NPI number 1285692376 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 2 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1407814023 | ELLEN WELLS SEELY MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 221 LONGWOOD AVENUE RFB2 BRIGHAM AND WOMEN'S HOSPITAL ENDOCRINOLOGY DIABETES AND BOSTON, MA 02115 (617) 732-5666 |
| 1477503993 | GORDON HAROLD WILLIAMS MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 221 LONGWOOD AVENUE RFB2 BRIGHAM AND WOMEN'S HOSPITAL ENDOCRINOLOGY DIABETES AND BOSTON, MA 02115 (617) 732-5661 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1285692376, enumerated in the NPI registry as an "individual" on May 01, 2006
The provider is located at 221 Longwood Avenue Rfb2 Brigham And Women's Hospital Endocrinology Diabetes And Boston, Ma 02115 and the phone number is (617) 732-5500
The provider's speciality is Internal Medicine with taxonomy code 207RE0101X with a focus in Endocrinology, Diabetes & Metabolism
The provider has more than 29 years of experience. He graduated from Northwestern University Feinberg Medical School in 1997.
The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield. 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.
Medicare beneficiaries should expect a typical cost of $144.11 with an average copayment of $36.02 for new patient appointments. Established patients should expect a typical charge of $111.18 and an average copayment of 27.79. Please review your insurance plan or contact the provider directly to determine your specific costs.
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, Established patient office or other outpatient visit, 40-54 minutes, Fine needle aspiration biopsy using ultrasound guidance, first growth, New patient office or other outpatient visit, 30-44 minutes and New patient office or other outpatient visit, 45-59 minutes.
The practitioner is affiliated to the following hospital(s): BRIGHAM AND WOMEN'S HOSPITAL. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.
This NPI record was last updated on May 01, 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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