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ERIC H TWERDAHL JR. MD
NPI 1093035461
Surgery - Vascular Surgery in Lebanon, NH

Active since June 08, 2010PECOS EnrolledAccepts Medicare Assignment
1 MEDICAL CENTER DR, LEBANON, NH 03756(603) 650-5000 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 28, 2026, Jul 10, 2024, Sep 19, 2022 and 1 more (4 updates tracked since 2022).

About Eric H Twerdahl Jr. Md NPPES

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

ERIC H TWERDAHL JR. MD (NPI 1093035461) is an individual vascular surgery provider in Lebanon, New Hampshire, licensed in New Hampshire (35090) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Suburban Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1093035461
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameERIC H TWERDAHL JR.Credential: MD
Location Address1 MEDICAL CENTER DRLebanon, NH 03756-0001
Mailing AddressPo Box 810Hanover, NH 03755-0810 · (603) 308-1467
Phone(603) 650-5000
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2010
Enumeration DateJune 8, 2010
Last NPPES UpdateMay 28, 20264 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
✔ NPI 1093035461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
Licenses✔ Licensed in NH · 35090✔ Licensed in DC · MD210001833✔ Licensed in VA · 0101257909
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedSurgeryTaxonomy 208600000X · License L-244073 (MA)
1 MEDICAL CENTER DR, Lebanon, NH 03756
Open in Google Maps ↗

Secondary Practice Locations 3

Location 12150 Pennsylvania Ave NWWashington, DC 20037-3201 · Phone (202) 741-3210
Location 21215 Lee StCharlottesville, VA 22908-0816 · Phone (434) 243-1000 · Fax (434) 244-7551
Location 38600 Old Georgetown RdBethesda, MD 20814-1422 · Phone (301) 896-2578 · Fax (301) 897-1378

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.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

Eric H Twerdahl Jr. 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 ID7012170509
PECOS Enrollment IDI20221003002129, I20250926000434
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 3

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

Suburban Hospital

Acute Care Hospitals · Bethesda, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210022
Location8600 Old Georgetown RoadBethesda, MD 20814 · Montgomery County
Emergency services

Mary Hitchcock Memorial Hospital

Acute Care Hospitals · Lebanon, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300003
Location1 Medical Center DriveLebanon, NH 03756 · Grafton County
Emergency services Birthing friendly

Elliot Hospital

Acute Care Hospitals · Manchester, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300012
Location1 Elliot WayManchester, NH 03103 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03756 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
$71.85 typical visit price
range $18.70 – $142.15
Typical copayment $17.96 (range $4.67 – $35.53)
Most-billed visit code 99213
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.

MRS. JANICE M BRENNAN APRN
Nurse Practitioner (Family)
1 MEDICAL CENTER DR, DHMC DEPARTMENT OF OCCUPATION MEDICINE
LEBANON, NH 03756
Grafton County (603) 560-5000
MS. SHELLEY GRACE BENSON R.PH.
Pharmacist (Oncology)
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5417
ELIAS LOUKAS M.D.
Internal Medicine
1 MEDICAL CENTER DR, DHMC SECTION OF HOSPITAL MEDICINE
LEBANON, NH 03756
Grafton County (603) 650-8380
SARAH S SEO MD
Otolaryngology
1 MEDICAL CENTER DR, OTOLARYNGOLOGY
LEBANON, NH 03756
Grafton County (603) 650-8123
DR. SRINIVAS J. IVATURY MD
Colon & Rectal Surgery
1 MEDICAL CENTER DR, COLON & RECTAL SURGERY DEPARTMENT
LEBANON, NH 03756
Grafton County (603) 650-8113
TIMOTHY EARLEY D.O.
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (201) 694-0663
HANNAH ELIZABETH FOOTE BENSIMHON M.D.
Internal Medicine (Cardiovascular Disease)
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5000
EMILE JOSEPH HASAN M.D.
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5000

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 Eric Twerdahl's NPI number?

The NPI number for Eric Twerdahl is 1093035461. It was assigned to this individual provider in the NPPES registry on June 8, 2010.

Where is Eric Twerdahl located?

Eric Twerdahl practices at 1 Medical Center Dr, Lebanon, NH 03756. The listed phone number is (603) 650-5000.

What is Eric Twerdahl's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Eric Twerdahl enrolled in Medicare?

Yes. Eric Twerdahl 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 Eric Twerdahl accept?

Health plans from Harvard Pilgrim Health Care list Eric Twerdahl 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 Eric Twerdahl affiliated with any hospitals?

According to CMS data, Eric Twerdahl is affiliated with Suburban Hospital, Mary Hitchcock Memorial Hospital and Elliot Hospital.

When was this NPI record last updated?

The NPPES record for Eric Twerdahl was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.