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DR. MARK ANDREWS JR. M.D.
NPI 1720425838
Internal Medicine in Worcester, MA

Active since May 30, 2013PECOS EnrolledAccepts Medicare Assignment
123 SUMMER ST, WORCESTER, MA 01608(508) 363-5000 Get Directions Write a Review

NPPES record last updated: May 10, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 10, 2021, Oct 21, 2018 (2 updates tracked since 2018).

About Dr. Mark Andrews Jr. M.d. NPPES

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

DR. MARK ANDREWS JR. M.D. (NPI 1720425838) is an individual internal medicine provider in Worcester, Massachusetts, licensed in Massachusetts (284154) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with St Vincent Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1720425838
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK ANDREWS JR.Credential: M.D.
Location Address123 SUMMER STWorcester, MA 01608-1216
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 522-5088 · Fax (508) 334-1977
Phone(508) 363-5000
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateMay 30, 2013
Last NPPES UpdateMay 10, 20212 updates tracked since enumeration
NPPES CertifiedMay 10, 2021
✔ NPI 1720425838 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MA · 284154✔ Licensed in MA · 273365
Definition
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.
123 SUMMER ST, Worcester, MA 01608
Open in Google Maps ↗

Secondary Practice Locations 3

Location 155 Lake Ave NWorcester, MA 01655-0002 · Phone (508) 334-8515 · Fax (508) 334-6490
Location 2119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-8515 · Fax (508) 334-6490
Location 3157 Union StMarlborough, MA 01752-1228 · Phone (508) 486-5678 · Fax (508) 486-5677

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. Mark Andrews Jr. 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 ID9234498130
PECOS Enrollment IDI20201207002912
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 Reassignment

Medicare enrollment records show Mark Andrews reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Reliant Medical Group, Inc
2.3 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 4

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
109 services104 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
70 services35 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
25 services25 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.
19 services19 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Vincent Hospital

Acute Care Hospitals · Worcester, MA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number220176
Location123 Summer StreetWorcester, MA 01608 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01608 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

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.

MADAIAH LOKESHWARI M.D.
Hospitalist
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-6849
DR. MADHAV SHARMA MD
Internal Medicine
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-5438
YESHASWINI KATKOORI MD
Student in an Organized Health Care Education/Training Program
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-5000
DANIELLE MAY PELOQUIN
Nurse Anesthetist, Certified Registered
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-5000
DR. YAYAN CHEN M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-6049
FARRICY & KRAFT LLP
Obstetrics & Gynecology (Obstetrics)
123 SUMMER ST, SUITE 560
WORCESTER, MA 01608
Worcester County (508) 363-6100
KEITH A BEALS PA
Physician Assistant
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-5000
ANNE E COVINO CNM
Midwife
123 SUMMER ST
WORCESTER, MA 01608
Worcester County (508) 363-5000

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 Mark Andrews's NPI number?

The NPI number for Mark Andrews is 1720425838. It was assigned to this individual provider in the NPPES registry on May 30, 2013.

Where is Mark Andrews located?

Mark Andrews practices at 123 Summer St, Worcester, MA 01608. The listed phone number is (508) 363-5000.

What is Mark Andrews's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Andrews enrolled in Medicare?

Yes. Mark Andrews 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 organization bills Medicare for Mark Andrews's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Andrews reassigns Medicare benefits to Reliant Medical Group, Inc (Worcester, MA). The 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 Mark Andrews's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mark Andrews affiliated with any hospitals?

According to CMS data, Mark Andrews is affiliated with St Vincent Hospital.

When was this NPI record last updated?

The NPPES record for Mark Andrews was last updated on May 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.