DR. RACHAEL LYNN FAWCETT M.D.
NPI 1801879945
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA

Q: What is Rachael Fawcett's NPI number?

The NPI number for Rachael Fawcett is 1801879945. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Q: What is Rachael Fawcett's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Rachael Fawcett was last updated on February 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 22, 2005PECOS EnrolledAccepts Medicare Assignment

133 BROOKLINE AVE, BOSTON, MA 02215(617) 421-1380(617) 421-2707 Get Directions Write a Review

NPPES record last updated: February 10, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Rachael Lynn Fawcett M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RACHAEL LYNN FAWCETT M.D. (NPI 1801879945) is an individual endocrinology, diabetes & metabolism provider in Boston, Massachusetts, licensed in Massachusetts (225720) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (2002).

NPPES Registry Identity

NPI1801879945

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameDR. RACHAEL LYNN FAWCETTCredential: M.D.

Location Address133 BROOKLINE AVEBoston, MA 02215-3904

Mailing Address133 Brookline AveBoston, MA 02215-3904 · (617) 421-1380 · Fax (617) 421-2707

Phone(617) 421-1380

Fax(617) 421-2707

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2002

Enumeration DateNovember 22, 2005

Last NPPES UpdateFebruary 10, 2021

NPPES CertifiedFebruary 10, 2021

✔ NPI 1801879945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in MA · 225720

Definition

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.

133 BROOKLINE AVE, Boston, MA 02215

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Rachael Lynn Fawcett M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507934007

PECOS Enrollment IDI20081010000476

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Rachael Fawcett reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Atrius Health, Inc.

Same address

Internal Medicine

133 BROOKLINE AVE
Boston, MA 02215

Reassigned Medicare billing, Massachusetts enrollment
1,317 clinicians in this Medicare group

NPI 1871639914 (617) 421-1000

Reliant Medical Group, Inc

36 mi

Family Medicine

5 NEPONSET ST
Worcester, MA 01606

Reassigned Medicare billing, Massachusetts enrollment
718 clinicians in this Medicare group

NPI 1720017528 (508) 852-0600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

3,360 services32 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

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.

312 services242 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

260 services182 patients

Calcium level, total 82310

A total calcium level test measures the amount of calcium in your blood. Calcium is essential for body functions like bone formation, nerve signal transmission, and muscle contraction. Abnormal levels may indicate conditions like bone disease or kidney disorders.

153 services111 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

147 services38 patients

Magnesium level 83735

A magnesium level test is a simple blood test that measures the amount of magnesium in your body. Magnesium is a crucial mineral that helps your nerves, muscles, and heart function properly. The test can help detect health conditions like kidney disease or malnutrition.

138 services104 patients

Phosphate level 84100

A phosphate level test measures the amount of phosphate in your blood. Phosphate is a chemical that contains the mineral phosphorus, crucial for energy production, muscle and nerve function, and bone growth. Imbalances may indicate kidney disease or other health issues.

136 services101 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

125 services100 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

125 services86 patients

Albumin (protein) level 82040

The Albumin Level test measures the amount of albumin, a vital protein made by the liver, in your blood. This protein helps keep fluid in your bloodstream so it doesn't leak into other tissues. It's also vital for tissue growth and healing. Low or high levels can indicate certain health issues.

122 services94 patients

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251

This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.

82 services45 patients

Thyroxine (thyroid chemical), total 84436

A Thyroxine (thyroid chemical) total test measures the amount of thyroxine, a hormone produced by your thyroid gland, in your blood. This hormone helps regulate your body's metabolism. The test can help diagnose thyroid disorders, such as hypothyroidism or hyperthyroidism.

63 services44 patients

Thyroid hormone evaluation 84479

A thyroid hormone evaluation is a test that measures the levels of thyroid hormones in your body. These hormones regulate energy and metabolism. If they're too high or too low, it could indicate a thyroid disorder. This test helps in diagnosing and managing such conditions.

63 services44 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

61 services60 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

48 services27 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

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.

39 services38 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

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.

33 services30 patients

Parathormone (parathyroid hormone) level 83970

The Parathormone level test measures the amount of parathyroid hormone in your blood. This hormone controls calcium and phosphorus levels in the body, which are vital for bone health. Abnormal levels may indicate issues like kidney disease or parathyroid gland disorders.

27 services20 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

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.

23 services23 patients

Thyroglobulin (thyroid related hormone) level 84432

The Thyroglobulin level test measures the amount of thyroglobulin, a hormone produced by your thyroid gland, in your blood. It helps monitor thyroid health, particularly after thyroid cancer treatment, to check for recurrence.

21 services15 patients

Thyroglobulin (thyroid protein) antibody measurement 86800

Thyroglobulin antibody measurement is a blood test that checks for antibodies against thyroglobulin, a protein in your thyroid gland. It helps detect conditions like Hashimoto's thyroiditis or monitor thyroid cancer treatment. It's a simple, safe procedure.

21 services15 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

3 suppliers22 claims204 services$18.07 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

4 suppliers23 claims620 services$2.18 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

15 suppliers36 claims142 services$5.94 avg. paid by Medicare

External ambulatory infusion pump, insulin E0784

DME-Other DME · category DE017N

2 suppliers20 claims20 services$272.85 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

11 suppliers310 claims315 services$182.50 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MELISSA ASHLEY ZIOGAS APRN-FNP

Nurse Practitioner (Family)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

SHIVAUN ELAINE PIKE NP

Nurse Practitioner (Adult Health)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

HARRIET SCHEFT M.D.

Psychiatry & Neurology (Psychiatry)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-2040

CAROL J ZUCKERMAN M.D.

Internal Medicine

133 BROOKLINE AVE, INTERNAL MEDICINE
BOSTON, MA 02215

Suffolk County (617) 421-5804

HARVARD VANGUARD MEDICAL ASSOCIATES

Social Worker

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

DIANE L. GILWORTH NP

Registered Nurse

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-6050

MARGARET SIDOR PHD, CGC

Genetic Counselor, MS

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1035

NED WILSON MORSE

Technician/Technologist (Optician)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (174) 211-1496

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rachael Fawcett's NPI number?

The NPI number for Rachael Fawcett is 1801879945. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Rachael Fawcett located?

Rachael Fawcett practices at 133 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 421-1380.

What is Rachael Fawcett's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Rachael Fawcett enrolled in Medicare?

Yes. Rachael Fawcett is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Rachael Fawcett's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachael Fawcett reassigns Medicare benefits to 2 organizations: Atrius Health, Inc. (Boston, MA) and Reliant Medical Group, Inc (Worcester, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rachael Fawcett's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachael Fawcett accept?

Health plans from Anthem Blue Cross and Blue Shield list Rachael Fawcett as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rachael Fawcett was last updated on February 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.