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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.

NEIL J MARKWITH M.D.
NPI 1982696647
Internal Medicine in Manchester, NH

Active since August 18, 2005PECOS Enrolled
445 CYPRESS ST, SUITE 6, MANCHESTER, NH 03103(603) 669-9450(603) 669-1858 Get Directions Write a Review

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

About Neil J Markwith M.d. NPPES

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

NEIL J MARKWITH M.D. (NPI 1982696647) is an individual internal medicine provider in Manchester, New Hampshire, licensed in New Hampshire (5961) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982696647
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameNEIL J MARKWITHCredential: M.D.
Location Address445 CYPRESS ST, SUITE 6Manchester, NH 03103-3600
Mailing Address445 Cypress St, Suite 6Manchester, NH 03103-3600 · (603) 669-9450 · Fax (603) 669-1858
Phone(603) 669-9450
Fax(603) 669-1858
Sole ProprietorNo
Enumeration DateAugust 18, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1982696647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NH · 5961
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.
445 CYPRESS ST, Manchester, NH 03103
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Other Identifiers 6

Other4964320012NH · Cigna-nh
OtherB86130NH · Harvard
Other14840608NH · Champus
Other020505817 0001NH · Cigna
Medicaid40209527NH
Other0004200383NH · Aetna

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Neil J Markwith M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03103 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
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
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 14

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

JOAN C. WALKER LICSW
Social Worker (Clinical)
445 CYPRESS ST, SUITE 8
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079
DAWN RUTH WYMAN LICSW
Social Worker (Clinical)
445 CYPRESS ST, SUITE 8
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079
STERLING PLASTIC SURGERY, PLLC
Plastic Surgery
445 CYPRESS ST, SUITE 1
MANCHESTER, NH 03103
Hillsborough County (603) 624-6770
ELIZABETH A. CHASE MD
Internal Medicine
445 CYPRESS ST, SUITE 5
MANCHESTER, NH 03103
Hillsborough County (603) 663-8200
LINDA J. BAGSHAW LCMHC
Counselor (Mental Health)
445 CYPRESS ST, SUITE 8
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079
TRACEY COULON LICSW
Social Worker (Clinical)
445 CYPRESS ST
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079
SARAH E BEMISH APRN
Nurse Practitioner (Psychiatric/Mental Health)
445 CYPRESS ST
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079
MELISSA ALDER LICSW
Social Worker (Clinical)
445 CYPRESS ST, SUITE 8
MANCHESTER, NH 03103
Hillsborough County (603) 668-4079

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 Neil Markwith's NPI number?

The NPI number for Neil Markwith is 1982696647. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Where is Neil Markwith located?

Neil Markwith practices at 445 Cypress St Suite 6, Manchester, NH 03103. The listed phone number is (603) 669-9450.

What is Neil Markwith's specialty?

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

Is Neil Markwith enrolled in Medicare?

Yes. Neil Markwith is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Neil Markwith 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 26 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.