DR. RAJESH ROY ZACHARIAS MD
NPI 1952534364
Internal Medicine - Critical Care Medicine in Boston, MA

Q: What is Rajesh Zacharias's NPI number?

The NPI number for Rajesh Zacharias is 1952534364. It was assigned to this individual provider in the NPPES registry on September 1, 2009.

Q: What is Rajesh Zacharias's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Rajesh Zacharias was last updated on October 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 September 01, 2009PECOS EnrolledAccepts Medicare Assignment

800 WASHINGTON ST, BOSTON, MA 02111(617) 636-5000(617) 636-1465 Get Directions Write a Review

NPPES record last updated: October 27, 2022. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Oct 27, 2022, Sep 29, 2022, Jun 29, 2020 (3 updates tracked since 2020).

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About Dr. Rajesh Roy Zacharias Md NPPES

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

DR. RAJESH ROY ZACHARIAS MD (NPI 1952534364) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (283964) and active in the NPI registry since September 2009. He is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and maintains a secondary practice location in Burlington.

NPPES Registry Identity

NPI1952534364

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. RAJESH ROY ZACHARIASCredential: MD

Location Address800 WASHINGTON STBoston, MA 02111-1552

Mailing Address800 Washington StBoston, MA 02111-1552 · (617) 636-5000 · Fax (617) 636-1465

Phone(617) 636-5000

Fax(617) 636-1465

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateSeptember 1, 2009

Last NPPES UpdateOctober 27, 20223 updates tracked since enumeration

NPPES CertifiedOctober 27, 2022

✔ NPI 1952534364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in MA · 283964

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 283964 (MA)

800 WASHINGTON ST, Boston, MA 02111

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Secondary Practice Location 1

Location 141 Mall RdBurlington, MA 01805-1552 · Phone (781) 744-8000

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Rajesh Roy Zacharias Md 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 ID8921313826

PECOS Enrollment IDI20200714002454

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.

Areas of Expertise CMS Part B claims 7

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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

175 services76 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

29 services29 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.

29 services25 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

17 services17 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.

14 services14 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Lowell General Hospital

Acute Care Hospitals · Lowell, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220063

Location295 Varnum AvenueLowell, MA 01854 · Middlesex County

Emergency services Birthing friendly

Melrosewakefield Healthcare

Acute Care Hospitals · Melrose, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220070

Location585 Lebanon StreetMelrose, MA 02176 · Middlesex County

Emergency services Birthing friendly

Tufts Medical Center

Acute Care Hospitals · Boston, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220116

Location800 Washington StreetBoston, MA 02111 · Suffolk 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 8

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

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

3 suppliers23 claims23 services$36.86 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

3 suppliers11 claims11 services$89.46 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

1 supplier11 claims66 services$17.35 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

2 suppliers16 claims16 services$48.49 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

3 suppliers15 claims15 services$17.49 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

3 suppliers24 claims140 services$2.10 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.

AARON DICKSTEIN M.D.

Internal Medicine (Gastroenterology)

800 WASHINGTON ST, BOX 233
BOSTON, MA 02111

Suffolk County (617) 636-5883

THOMAS E BIGELOW

Technician/Technologist (Optician)

800 WASHINGTON ST, BOX 450
BOSTON, MA 02111

Suffolk County (617) 636-5857

SARAH MERRIMAN PERSING M.D.

Plastic Surgery