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

TIMOTHY MARSHALL SIEVERS MD
NPI 1811951288
Anesthesiology - Pain Medicine in Manchester, NH

Active since April 13, 2006
1 ELLIOT WAY, SUITE 200, MANCHESTER, NH 03103(603) 663-2315(603) 647-9180 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Timothy Marshall Sievers Md NPPES

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

TIMOTHY MARSHALL SIEVERS MD (NPI 1811951288) is an individual pain medicine provider in Manchester, New Hampshire, licensed in New Hampshire (9198) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1811951288
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameTIMOTHY MARSHALL SIEVERSCredential: MD
Location Address1 ELLIOT WAY, SUITE 200Manchester, NH 03103-3502
Mailing Address1 Elliot Way, Suite 200Manchester, NH 03103-3502 · (603) 663-2315 · Fax (603) 647-9180
Phone(603) 663-2315
Fax(603) 647-9180
Sole ProprietorNo
Enumeration DateApril 13, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1811951288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in NH · 9198
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
Also ListedAnesthesiologyTaxonomy 207L00000X · License 9198 (NH)
1 ELLIOT WAY, Manchester, NH 03103
Open in Google Maps ↗

Other Identifiers 1

Medicaid30006797NH

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.

JUSTINA JANE VOLODZKO PA-C
Physician Assistant (Surgical)
1 ELLIOT WAY
MANCHESTER, NH 03103
Hillsborough County (603) 669-5300
ELLIOT PROFESSIONAL SERVICES
Internal Medicine (Critical Care Medicine)
1 ELLIOT WAY, ELLIOT INTENSIVIST PROGRAM
MANCHESTER, NH 03103
Hillsborough County (603) 663-2231
ELLIOT PROFESSIONAL SERVICES
Pediatrics (Neonatal-Perinatal Medicine)
1 ELLIOT WAY, NEONATOLOGY SERVICES
MANCHESTER, NH 03103
Hillsborough County (603) 663-2692
DR. BRYAN PARKER ROWE M.D.
Radiology (Radiation Oncology)
1 ELLIOT WAY
MANCHESTER, NH 03103
Hillsborough County (603) 663-1800
DR. PETER WILSON SHAW MD
Internal Medicine (Cardiovascular Disease)
1 ELLIOT WAY
MANCHESTER, NH 03103
Hillsborough County (603) 627-1669
LAURA SLASON DOBENS CRNA
Nurse Anesthetist, Certified Registered
1 ELLIOT WAY
MANCHESTER, NH 03103
Hillsborough County (603) 663-2315
DR. CHARLES BECK EASTWOOD M.D., C.M.
Anesthesiology
1 ELLIOT WAY, SUITE 200
MANCHESTER, NH 03103
Hillsborough County (603) 663-2315
MRS. ERIN HOPE FERNALD APRN
Nurse Practitioner (Family)
1 ELLIOT WAY, EMERGENCY DEPARTMENT
MANCHESTER, NH 03103
Hillsborough County (603) 663-2830

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 Timothy Sievers's NPI number?

The NPI number for Timothy Sievers is 1811951288. It was assigned to this individual provider in the NPPES registry on April 13, 2006.

Where is Timothy Sievers located?

Timothy Sievers practices at 1 Elliot Way Suite 200, Manchester, NH 03103. The listed phone number is (603) 663-2315.

What is Timothy Sievers's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

When was this NPI record last updated?

The NPPES record for Timothy Sievers was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 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.