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DR. WILLIAM ARTHUR SEIFFERT MD
NPI 1669563284
Internal Medicine in Las Cruces, NM

Active since September 27, 2006PECOS Enrolled
4311 E LOHMAN AVE, 4TH FLOOR, LAS CRUCES, NM 88011(575) 556-6625(575) 556-7495 Get Directions Write a Review

NPPES record last updated: May 11, 2017. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Arthur Seiffert Md NPPES

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

DR. WILLIAM ARTHUR SEIFFERT MD (NPI 1669563284) is an individual internal medicine provider in Las Cruces, New Mexico, licensed in New Mexico (MD2009-0068) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669563284
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM ARTHUR SEIFFERTCredential: MD
Location Address4311 E LOHMAN AVE, 4TH FLOORLas Cruces, NM 88011-8255
Mailing Address4311 E Lohman Ave, 4th FloorLas Cruces, NM 88011-8255 · (575) 556-6625 · Fax (575) 556-7495
Phone(575) 556-6625
Fax(575) 556-7495
Sole ProprietorNo
Enumeration DateSeptember 27, 2006
Last NPPES UpdateMay 11, 2017
✔ NPI 1669563284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NM · MD2009-0068
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.
4311 E LOHMAN AVE, Las Cruces, NM 88011
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Other Identifiers 2

Medicaid75182262NM
Medicare PINNM301918NM

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Arthur Seiffert Md 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 88011 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
$126.21 typical visit price
range $54.26 – $166.80
Typical copayment $31.55 (range $13.56 – $41.70)
Most-billed visit code 99204
Established Patient
$96.38 typical visit price
range $17.00 – $135.35
Typical copayment $24.09 (range $4.25 – $33.83)
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.

MR. BENJAMIN SKYLER DOTTERS-KATZ D.O.
Student in an Organized Health Care Education/Training Program
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (541) 517-9622
DR JUSTIN LANIER SANDERS D.O.
Internal Medicine
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 566-7600
DAVID P. LEACHMAN M.D.
Anesthesiology
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 556-7615
DR. FARRUKH NOOR AHMED
Student in an Organized Health Care Education/Training Program
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 556-7600
APP OF NEW MEXICO HM PLLC
Hospitalist
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 556-7600
WILLIAM J BUSSEY MD
Emergency Medicine
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (505) 532-8800
ASHLEY MOZIEJKO RN
Registered Nurse (Medical-Surgical)
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 566-7600
PETER MICHAEL BUFFA SR. M.D., PA
Emergency Medicine
4311 E LOHMAN AVE
LAS CRUCES, NM 88011
Doña Ana County (575) 556-7600

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 William Seiffert's NPI number?

The NPI number for William Seiffert is 1669563284. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is William Seiffert located?

William Seiffert practices at 4311 E Lohman Ave 4th Floor, Las Cruces, NM 88011. The listed phone number is (575) 556-6625.

What is William Seiffert's specialty?

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

Is William Seiffert enrolled in Medicare?

Yes. William Seiffert is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Seiffert was last updated on May 11, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.