Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SHREIN SAINI M.D.
NPI 1235580259
Internal Medicine - Infectious Disease in Boston, MA

Active since June 30, 2016PECOS Enrolled
800 WASHINGTON ST, BOSTON, MA 02111(617) 636-8877 Get Directions Write a Review

NPPES record last updated: October 26, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 26, 2026, Jul 24, 2019, Jul 13, 2019 and 3 more (6 updates tracked since 2016).

About Shrein Saini M.d. NPPES

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

SHREIN SAINI M.D. (NPI 1235580259) is an individual infectious disease provider in Boston, Massachusetts, licensed in Massachusetts (267709) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with Good Samaritan Medical Center, and maintains a secondary practice location in Bellingham.

NPPES Registry Identity

NPI1235580259
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameSHREIN SAINICredential: M.D.
Location Address800 WASHINGTON STBoston, MA 02111-1552
Mailing Address800 Washington StBoston, MA 02111-1552
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJune 30, 2016
Last NPPES UpdateOctober 26, 20266 updates tracked since enumeration
NPPES CertifiedOctober 26, 2026
✔ NPI 1235580259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in MA · 267709
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD.MD.70160201 (WA)
800 WASHINGTON ST, Boston, MA 02111

Secondary Practice Location 1

Location 14545 Cordata Pkwy Ste 2Aand2BBellingham, WA 98226-7263 · Phone (360) 752-5220 · Fax (360) 752-5682

Accepted 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

Shrein Saini 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 ID9335476746
PECOS Enrollment IDI20210924001035
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 Shrein Saini reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
158 PLEASANT STREET
Brockton, MA 02301
  • Reassigned Medicare billing, Massachusetts enrollment
  • 128 clinicians in this Medicare group

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 2

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.

Blood glucose (sugar) level 82947
A blood glucose level test measures the amount of sugar in your blood. It's often used to monitor and manage conditions like diabetes. High or low levels can indicate a health issue. The test is usually done by pricking your finger for a small blood sample.
41 services25 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.
21 services17 patients

Hospital Affiliations CMS Care Compare

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

Good Samaritan Medical Center

Acute Care Hospitals · Brockton, MA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number220111
Location235 North Pearl StreetBrockton, MA 02301 · Plymouth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02111 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

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

Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier11 claims11 services$0.28 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.

Internal Medicine (Gastroenterology)
800 WASHINGTON ST, BOX 233
BOSTON, MA 02111
Technician/Technologist (Optician)
800 WASHINGTON ST, BOX 450
BOSTON, MA 02111
Plastic Surgery
800 WASHINGTON ST
BOSTON, MA 02111
Internal Medicine
800 WASHINGTON ST
BOSTON, MA 02111
Internal Medicine (Infectious Disease)
800 WASHINGTON ST
BOSTON, MA 02111
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111
Psychiatry & Neurology (Psychiatry)
800 WASHINGTON ST
BOSTON, MA 02111
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111

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 Shrein Saini's NPI number?

The NPI number for Shrein Saini is 1235580259. It was assigned to this individual provider in the NPPES registry on June 30, 2016.

Where is Shrein Saini located?

Shrein Saini practices at 800 Washington St, Boston, MA 02111. The listed phone number is (617) 636-8877.

What is Shrein Saini's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Shrein Saini enrolled in Medicare?

Yes. Shrein Saini 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 Shrein Saini's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shrein Saini reassigns Medicare benefits to Brockton Neighborhood Health Center (Brockton, 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 Shrein Saini's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shrein Saini accept?

Health plans from Anthem Blue Cross and Blue Shield list Shrein Saini 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.

Is Shrein Saini affiliated with any hospitals?

According to CMS data, Shrein Saini is affiliated with Good Samaritan Medical Center.

When was this NPI record last updated?

The NPPES record for Shrein Saini was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.