SHAHAB SHAYESTEH MD
NPI 1083291603
Internal Medicine in Concord, MA

Q: What is Shahab Shayesteh's NPI number?

The NPI number for Shahab Shayesteh is 1083291603. It was assigned to this individual provider in the NPPES registry on March 28, 2021.

Q: What is Shahab Shayesteh's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Shahab Shayesteh was last updated on April 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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 March 28, 2021PECOS EnrolledAccepts Medicare Assignment

133 OLD ROAD TO 9 ACRE COR, CONCORD, MA 01742(978) 287-3321(978) 287-3102 Get Directions Write a Review

NPPES record last updated: April 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 13, 2026, Mar 28, 2021 (2 updates tracked since 2021).

On this page

About Shahab Shayesteh Md NPPES

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

SHAHAB SHAYESTEH MD (NPI 1083291603) is an individual internal medicine provider in Concord, Massachusetts, licensed in Massachusetts (1022825) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Emerson Hospital -, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1083291603

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameSHAHAB SHAYESTEHCredential: MD

Location Address133 OLD ROAD TO 9 ACRE CORConcord, MA 01742-4159

Mailing AddressPo Box 411581Boston, MA 02241-9095 · (978) 287-3321

Phone(978) 287-3321

Fax(978) 287-3102

Sole ProprietorYes

Medical School CMSOtherGraduated 2008

Enumeration DateMarch 28, 2021

Last NPPES UpdateApril 13, 20262 updates tracked since enumeration

NPPES CertifiedApril 13, 2026

✔ NPI 1083291603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MA · 1022825

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.

Also ListedHospitalistTaxonomy 208M00000X · License 1022825 (MA)

133 OLD ROAD TO 9 ACRE COR, Concord, MA 01742

Open in Google Maps ↗

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

Shahab Shayesteh 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 ID1153807268

PECOS Enrollment IDI20260108002073

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 Shahab Shayesteh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Emerson Practice Associates, Inc.

Same address

Internal Medicine

133 OLD ROAD TO NINE ACRE CORNER
Concord, MA 01742

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

NPI 1508020199 (978) 287-3022

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

Hospital Affiliations CMS Care Compare

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

Emerson Hospital -

Acute Care Hospitals · W Concord, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220084

Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · Middlesex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01742 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.

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.

TAK MEDICAL GROUP, P.C.

Internal Medicine (Critical Care Medicine)