Dr. Michael Christakis , MD
Internal Medicine β’ Worcester, MA
605 Lincoln Street, Worcester Va Outpatient Clinic
Worcester, MA 01605
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Michael Christakis is listed in NPPES under Internal Medicine.
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NPI assigned on May 31, 2006; this date does not establish years in practice.
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Published CMS data list 50 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Simvastatin β 26 prescription fills, including refills.
- Lisinopril β 13 prescription fills, including refills.
- Hydrochlorothiazide β 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 25 in 2019 to 50 in 2020.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2019β2020.
Practice Location & Contact Primary Location
605 Lincoln Street
Worcester Va Outpatient Clinic
Worcester, MA 01605
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
140 standardized 30-day fills in 2020
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$396 in 2020
The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Christakis has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Christakis as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Worcester and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Christakis are from 2020.
443 active clinicians are listed under Internal Medicine with a practice address in Worcester, MA (6,822 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Worcester
18.5% of these 443 clinicians have the CMS telehealth indicator.
59.1% of these 443 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 100% from 25 in 2019 to 50 in 2020.
- 2019: 25
- 2020: 50
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30-day fills
30-day fills increased 87% from 75 in 2019 to 140 in 2020.
- 2019: 75
- 2020: 140
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Part D drug cost
Part D drug cost went from $165 in 2019 to $396 in 2020.
- 2019: $165
- 2020: $396
Sources: CMS Medicare Part D Prescribers (2020), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Simvastatin | Simvastatin | 26 | 2,270 | $241.00 | 11 |
| Lisinopril | Lisinopril | 13 | 1,170 | $73.04 | β |
| Hydrochlorothiazide | Hydrochlorothiazide | 11 | 750 | $82.09 | β |
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSORDER AND REFERRING ONLY - INTERNAL MEDICINE
I20160628000707
MA
5991805764
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Social Worker - Clinical
Licensed Clinical Social Worker
Dietitian, Registered
Master of Science, Registered Dietitian, Licensed Dietitian Nutritionist, Certified Diabetes Care and Education Specialist
Optometrist
Doctor of Optometry
Nurse Practitioner
Family Nurse Practitioner (Certified)
Career & Practice History
NPI enumerated May 31, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Worcester
- Dr. Randall Morse, MD
- Dr. Gautam Chhajed, MD
- Dr. Kern Bayard, MD
- Dr. Shay Hershkovitz, MD
- Dr. Khaled Sheikh Qasem, MD
- Dr. Samuel Thomas, DO
Mailing Address
50 Wickaboag Valley Rd
West Brookfield, MA 015852846
Phone: 5088560104