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DR. KARL M. UNKENHOLZ M.D.
NPI 1215914429
Emergency Medicine in Potsdam, NY

Active since December 29, 2005PECOS EnrolledAccepts Medicare Assignment
50 LEROY ST, POTSDAM, NY 13676(315) 265-3300(315) 261-6025 Get Directions Write a Review

NPPES record last updated: January 7, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 7, 2025, Mar 31, 2021, May 29, 2020 (3 updates tracked since 2020).

About Dr. Karl M. Unkenholz M.d. NPPES

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

DR. KARL M. UNKENHOLZ M.D. (NPI 1215914429) is an individual emergency medicine provider in Potsdam, New York, licensed in New Mexico (MD2019-0916) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Memorial Medical Center, and maintains a secondary practice location in Salt Lake City.

NPPES Registry Identity

NPI1215914429
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. KARL M. UNKENHOLZCredential: M.D.
Location Address50 LEROY STPotsdam, NY 13676-1786
Mailing Address50 Leroy StPotsdam, NY 13676-1786 · (315) 265-3300 · Fax (315) 261-6025
Phone(315) 265-3300
Fax(315) 261-6025
Sole ProprietorYes
Medical School CMSOtherGraduated 1994
Enumeration DateDecember 29, 2005
Last NPPES UpdateJanuary 7, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2025
✔ NPI 1215914429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in NM · MD2019-0916✔ Licensed in HI · MD14392✔ Licensed in CA · C53154✔ Licensed in NY · 207725-1
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
50 LEROY ST, Potsdam, NY 13676
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Secondary Practice Location 1

Location 1275 E 200 SSalt Lake City, UT 84111-2002 · Phone (800) 336-1884

Other Identifiers 2

Medicaid01801445NY
Other686V11NY · Bluecross Blueshield

Accepted Insurance

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

Dr. Karl M. Unkenholz 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 ID1759476492
PECOS Enrollment IDI20100220000029, I20220810001889
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
96 services90 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
64 services63 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
32 services31 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Memorial Medical Center

Acute Care Hospitals · Las Cruces, NM
1/5 CMS rating
OwnershipProprietary
CMS Certification Number320018
Location2450 South Telshor BlvdLas Cruces, NM 88011 · Dona Ana County
Emergency services Birthing friendly

Presbyterian Hospital

Acute Care Hospitals · Albuquerque, NM
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number320021
Location1100 Central Avenue SEAlbuquerque, NM 87106 · Bernalillo County
Emergency services Birthing friendly

Alta Vista Regional Hospital

Critical Access Hospitals · Las Vegas, NM
OwnershipProprietary
CMS Certification Number321312
Location104 Legion DriveLas Vegas, NM 87701 · San Miguel County
Emergency services

Chenango Memorial Hospital

Acute Care Hospitals · Norwich, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330033
Location179 North Broad StreetNorwich, NY 13815 · Chenango County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 13676 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

JULIE LYNN LAWLESS LCSW
Social Worker (Clinical)
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300
DR. KYLE FLINT PHARMD, RPH
Pharmacist
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300
HEATHER MACKINNON
Physician Assistant
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300
KARYN SULLIVAN PA
Emergency Medicine
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 782-2620
COREEN BOHL MSW, LCSW, ACHP-SW
Social Worker (Clinical)
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300
KELSEY MILLER
Pharmacist
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 261-5511
CHRISTINA KASHMER PA
Physician Assistant
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300
YASMEEN ZAIDI MS
Counselor (Mental Health)
50 LEROY ST
POTSDAM, NY 13676
St. Lawrence County (315) 265-3300

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 Karl Unkenholz's NPI number?

The NPI number for Karl Unkenholz is 1215914429. It was assigned to this individual provider in the NPPES registry on December 29, 2005.

Where is Karl Unkenholz located?

Karl Unkenholz practices at 50 Leroy St, Potsdam, NY 13676. The listed phone number is (315) 265-3300.

What is Karl Unkenholz's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Karl Unkenholz enrolled in Medicare?

Yes. Karl Unkenholz 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 Karl Unkenholz accept?

Health plans from Blue Cross and Blue Shield of Montana list Karl Unkenholz 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 Karl Unkenholz affiliated with any hospitals?

According to CMS data, Karl Unkenholz is affiliated with Memorial Medical Center, Presbyterian Hospital, Alta Vista Regional Hospital and Chenango Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Karl Unkenholz was last updated on January 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.