ALWIN SEBASTIAN M.D.
NPI 1740928514
Family Medicine in Portsmouth, NH

Q: What is Alwin Sebastian's NPI number?

The NPI number for Alwin Sebastian is 1740928514. It was assigned to this individual provider in the NPPES registry on May 23, 2022.

Q: What is Alwin Sebastian's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Alwin Sebastian was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 May 23, 2022PECOS EnrolledAccepts Medicare Assignment

333 BORTHWICK AVENUE, PORTSMOUTH, NH 03801(303) 563-9790 Get Directions Write a Review

NPPES record last updated: September 23, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 4, 2022, Sep 8, 2022, May 23, 2022 (3 updates tracked since 2022).

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About Alwin Sebastian M.d. NPPES

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

ALWIN SEBASTIAN M.D. (NPI 1740928514) is an individual family medicine provider in Portsmouth, New Hampshire, licensed in Texas (W1223) and active in the NPI registry since May 2022. He is enrolled in Medicare PECOS, is affiliated with Valley Regional Medical Center, and maintains a secondary practice location in Somersworth.

NPPES Registry Identity

NPI1740928514

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameALWIN SEBASTIANCredential: M.D.

Location Address333 BORTHWICK AVENUEPortsmouth, NH 03801

Mailing Address333 Borthwick AvenuePortsmouth, NH 03801

Phone(303) 563-9790

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateMay 23, 2022

Last NPPES UpdateSeptember 23, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 23, 2025

✔ NPI 1740928514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in TX · W1223

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedHospitalistTaxonomy 208M00000X · License W1223 (TX)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License R4045 (NH)

333 BORTHWICK AVENUE, Portsmouth, NH 03801

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Secondary Practice Location 1

Location 1311 Route 108Somersworth, NH 03878-1522 · Phone (603) 749-2346 · Fax (603) 953-0066

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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

Alwin Sebastian 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 ID7113424896

PECOS Enrollment IDI20251008002447

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.

Hospital Affiliations CMS Care Compare

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

Valley Regional Medical Center

Acute Care Hospitals · Brownsville, TX

2/5 CMS rating

OwnershipProprietary

CMS Certification Number450662

Location100 A Alton GloorBrownsville, TX 78526 · Cameron County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03801 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

$89.14 typical visit price

range $57.75 – $174.26

Typical copayment $22.28 (range $14.43 – $43.56)

Most-billed visit code 99203

Established Patient

$101.54 typical visit price

range $18.70 – $142.15

Typical copayment $25.38 (range $4.67 – $35.53)

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 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. HANAD OMAR M.D.

Internal Medicine

333 BORTHWICK AVENUE
PORTSMOUTH, NH 03801

Rockingham County (603) 436-5110

MARK C SULLIVAN PA-C

Physician Assistant (Surgical)

333 BORTHWICK AVENUE, SUITE 402
PORTSMOUTH, NH 03801

Rockingham County (603) 559-4111

DR. SYED M PEERAN MD

Surgery (Vascular Surgery)

333 BORTHWICK AVENUE, SUITE 402
PORTSMOUTH, NH 03801

Rockingham County (603) 559-4111

MR. RAHIM SHIVJI M.D.

Student in an Organized Health Care Education/Training Program

333 BORTHWICK AVENUE
PORTSMOUTH, NH 03801

Rockingham County (603) 436-5110

DR. JOHN ANTHONY FEDERICO MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

333 BORTHWICK AVENUE, SUITE 402
PORTSMOUTH, NH 03801

Rockingham County (603) 559-4111

JOHN MICHAEL PANOPOULOS D.O.

Anesthesiology

333 BORTHWICK AVENUE, PORTSMOUTH ANESTHESIA ASSOCIATES
PORTSMOUTH, NH 03801

Rockingham County (603) 749-0043

WILMER JONES III MD

Surgery (Vascular Surgery)

333 BORTHWICK AVENUE, SUITE 402
PORTSMOUTH, NH 03801

Rockingham County (603) 559-4111

PETER J DOURDOUFIS DO

Internal Medicine (Cardiovascular Disease)

333 BORTHWICK AVENUE, SUITE 401
PORTSMOUTH, NH 03801

Rockingham County (603) 433-5300

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 Alwin Sebastian's NPI number?

The NPI number for Alwin Sebastian is 1740928514. It was assigned to this individual provider in the NPPES registry on May 23, 2022.

Where is Alwin Sebastian located?

Alwin Sebastian practices at 333 Borthwick Avenue, Portsmouth, NH 03801. The listed phone number is (303) 563-9790.

What is Alwin Sebastian's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Alwin Sebastian enrolled in Medicare?

Yes. Alwin Sebastian 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.

What insurance does Alwin Sebastian accept?

Health plans from Blue Cross and Blue Shield of Texas list Alwin Sebastian 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 Alwin Sebastian affiliated with any hospitals?

According to CMS data, Alwin Sebastian is affiliated with Valley Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Alwin Sebastian was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.