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DR. KAREN D ERNST M.D.
NPI 1851386403
Radiology - Diagnostic Radiology in Glens Falls, NY

Active since September 20, 2005PECOS EnrolledAccepts Medicare Assignment
NORTH COUNTRY IMAGING CENTER, 11 MURRAY ST, GLENS FALLS, NY 12801(518) 793-1000(518) 793-3125 Get Directions Write a Review

NPPES record last updated: June 22, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Karen D Ernst M.d. NPPES

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

DR. KAREN D ERNST M.D. (NPI 1851386403) is an individual diagnostic radiology provider in Glens Falls, New York, licensed in New York (208139) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Samaritan Hospital Of Troy, New York, and is a graduate of Albany Medical College Of Union University (1991).

NPPES Registry Identity

NPI1851386403
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameDR. KAREN D ERNSTCredential: M.D.
Location AddressNORTH COUNTRY IMAGING CENTER, 11 MURRAY STGlens Falls, NY 12801
Mailing AddressPo Box 985Glens Falls, NY 12801-0985 · (518) 793-1000 · Fax (518) 793-3125
Phone(518) 793-1000
Fax(518) 793-3125
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 1991
Enumeration DateSeptember 20, 2005
Last NPPES UpdateJune 22, 2010
✔ NPI 1851386403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in NY · 208139
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
NORTH COUNTRY IMAGING CENTER, Glens Falls, NY 12801
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Other Identifiers 3

Medicare ID-Type UnspecifiedCC8739NY
Medicare UPINF76665NY
Medicaid01881305NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karen D Ernst 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 ID5799800264
PECOS Enrollment IDI20100921000911
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.

Medicare Billing Reassignments

9

Medicare enrollment records show Karen Ernst reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Capital Imaging Associates
37 mi
Diagnostic Radiology
1001 LOUDEN
Cohoes, NY 12047
  • Reassigned Medicare billing, New York enrollment
  • 55 clinicians in this Medicare group
NPI 1093794513 (518) 785-7373
Community Care Physicians, PLLC
38 mi
Internal Medicine
6 WELLNESS WAY STE 201
Latham, NY 12110
  • Reassigned Medicare billing, New York enrollment
  • 474 clinicians in this Medicare group
NPI 1922048370 (518) 782-3700
Medical Diagnostic Imaging PLLC
112 mi
Radiology
14 RAYMOND AVE
Poughkeepsie, NY 12603
  • Reassigned Medicare billing, New York enrollment
  • 26 clinicians in this Medicare group
NPI 1760435291 (845) 471-2848
West Hudson Imaging Associates, PLLC
126 mi
Diagnostic Radiology
70 DUBOIS ST, WEST HUDSON IMAGING
Newburgh, NY 12550
  • Reassigned Medicare billing, New York enrollment
  • 34 clinicians in this Medicare group
NPI 1982610713 (845) 568-2536
Hudson Valley Diagnostic Imaging, PLLC
128 mi
Diagnostic Radiology
575 HUDSON VALLEY AVE, SUITE 101
New Windsor, NY 12553
  • Reassigned Medicare billing, New York enrollment
  • 28 clinicians in this Medicare group
NPI 1407862246 (845) 220-2222
Radiologic Associates Prof Corp
134 mi
Diagnostic Radiology
707 E MAIN ST, RADIOLOGIC ASSOCIATES
Middletown, NY 10940
  • Reassigned Medicare billing, New York enrollment
  • 46 clinicians in this Medicare group
NPI 1033125844 (845) 343-0616
Diagnostic Imaging Associates Of North Jersey PA
165 mi
Radiology
19-04 FAIR LAWN AVE
Fair Lawn, NJ 07410
  • Reassigned Medicare billing, New York enrollment
  • 10 clinicians in this Medicare group
NPI 1841381407 (201) 794-3132
New Rochelle Radiology Associates, P.C.
165 mi
Diagnostic Radiology
175 MEMORIAL HWY, LL14
New Rochelle, NY 10801
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: New Rochelle Radiology Associates PC
  • 27 clinicians in this Medicare group
NPI 1376539080 (914) 633-7700
Urban Health Plan, Inc
171 mi
Federally Qualified Health Center (FQHC)
1515 SOUTHERN BOULEVARD
Bronx, NY 10460
  • Reassigned Medicare billing, New York enrollment
  • 197 clinicians in this Medicare group
NPI 1568518611 (718) 589-2440

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

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.

Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
135 services135 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
130 services130 patients
Dxa bone density measurement of hip, pelvis, spine 77080
A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
65 services65 patients
Limited ultrasound scan of 1 breast 76642
A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.
61 services59 patients
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279
Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.
49 services49 patients
Diagnostic mammography of 1 breast 77065
Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.
43 services40 patients

Hospital Affiliations CMS Care Compare

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

Samaritan Hospital Of Troy, New York

Acute Care Hospitals · Troy, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330180
Location2215 Burdett AvenueTroy, NY 12180 · Rensselaer County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 12801 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
$68.57 typical visit price
range $17.54 – $136.14
Typical copayment $17.14 (range $4.38 – $34.03)
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.

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 Karen Ernst's NPI number?

The NPI number for Karen Ernst is 1851386403. It was assigned to this individual provider in the NPPES registry on September 20, 2005.

Where is Karen Ernst located?

Karen Ernst practices at North Country Imaging Center 11 Murray St, Glens Falls, NY 12801. The listed phone number is (518) 793-1000.

What is Karen Ernst's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Karen Ernst enrolled in Medicare?

Yes. Karen Ernst 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.

Which organizations bill Medicare for Karen Ernst's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Ernst reassigns Medicare benefits to 9 organizations: Capital Imaging Associates (Cohoes, NY), Community Care Physicians, PLLC (Latham, NY), Medical Diagnostic Imaging PLLC (Poughkeepsie, NY), West Hudson Imaging Associates, PLLC (Newburgh, NY), Hudson Valley Diagnostic Imaging, PLLC (New Windsor, NY) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Ernst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Karen Ernst affiliated with any hospitals?

According to CMS data, Karen Ernst is affiliated with Samaritan Hospital Of Troy, New York.

When was this NPI record last updated?

The NPPES record for Karen Ernst was last updated on June 22, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.