Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ELIZABETH K. B. BUCK MD
NPI 1790759017
Internal Medicine in Saranac Lake, NY

Q: What is Elizabeth Buck's NPI number?

The NPI number for Elizabeth Buck is 1790759017. It was assigned to this individual provider in the NPPES registry on February 14, 2006. The provider is also known as Elizabeth K Beiser.

Q: What is Elizabeth Buck's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Buck was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 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.

Active since February 14, 2006PECOS EnrolledAccepts Medicare Assignment

2249 STATE ROUTE 86 STE 3, SARANAC LAKE, NY 12983(518) 891-3845(518) 891-1236 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 7, 2026, Mar 12, 2026, Dec 30, 2025 and 5 more (8 updates tracked since 2020).

On this page

About Elizabeth K. B. Buck Md NPPES

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

ELIZABETH K. B. BUCK MD (NPI 1790759017) is an individual internal medicine provider in Saranac Lake, New York, licensed in New York (199807) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Adirondack Medical Center - Saranac Lake, and maintains a secondary practice location in Tupper Lake.

NPPES Registry Identity

NPI1790759017

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameELIZABETH K. B. BUCKCredential: MD

Location Address2249 STATE ROUTE 86 STE 3Saranac Lake, NY 12983-5646

Mailing Address9 Carey RdQueensbury, NY 12804-7880 · (518) 761-0300

Phone(518) 891-3845

Fax(518) 891-1236

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 1991

Enumeration DateFebruary 14, 2006

Last NPPES UpdateOctober 7, 20268 updates tracked since enumeration

NPPES CertifiedOctober 7, 2026

✔ NPI 1790759017 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 199807

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.

Also ListedPediatricsTaxonomy 208000000X · License 199807 (NY)

2249 STATE ROUTE 86 STE 3, Saranac Lake, NY 12983

Open in Google Maps ↗

Other Names 1

Former Name (1)Elizabeth K Beiser

Secondary Practice Location 1

Location 17 Stetson RdTupper Lake, NY 12986-2014 · Phone (518) 359-7222 · Fax (518) 359-7664

Other Identifiers 1

Medicaid01581346NY

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

Elizabeth K. B. Buck 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 ID4587799531

PECOS Enrollment IDI20100317000084

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 Reassignment

Medicare enrollment records show Elizabeth Buck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hudson Headwaters Health Network

0.1 mi

Primary Care

2249 STATE ROUTE 86 STE 3
Saranac Lake, NY 12983

Reassigned Medicare billing, New York enrollment
197 clinicians in this Medicare group

NPI 1912520636 (518) 891-3845

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 3

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.

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

49 services35 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

13 services11 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Adirondack Medical Center - Saranac Lake

Acute Care Hospitals · Saranac Lake, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number330079

Location2233 State Route 86, PO Box 471Saranac Lake, NY 12983 · Franklin County

Emergency services Birthing friendly

Elizabethtown Community Hospital

Critical Access Hospitals · Elizabethtown, NY

OwnershipVoluntary non-profit - Private

CMS Certification Number331302

Location75 Park StreetElizabethtown, NY 12932 · Essex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 12983 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

$126.40 typical visit price

range $54.87 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

88%1,913 patients4/55-star benchmark: 100%

Health Information Exchange

The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…

12%173 patients1/55-star benchmark: 96%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

9%683 patients1/55-star benchmark: 99%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

84%683 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

37%683 patients3/55-star benchmark: 59%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 16

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

5 suppliers59 claims171 services$5.16 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

2 suppliers25 claims29 services$0.90 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

2 suppliers14 claims14 services$101.77 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

2 suppliers19 claims47 services$38.90 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

1 supplier15 claims15 services$19.96 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

1 supplier26 claims26 services$19.55 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

1 supplier20 claims115 services$2.43 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

1 supplier11 claims11 services$8.94 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

5 suppliers74 claims74 services$22.89 avg. paid by Medicare

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443

DME-Oxygen and Supplies · category DC000N

3 suppliers29 claims29 services$46.75 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

1 supplier19 claims19 services$52.32 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

6 suppliers111 claims111 services$107.56 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

4 suppliers34 claims5,632 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

2 suppliers12 claims2,430 services$0.08 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers16 claims16 services$204.55 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

5 suppliers38 claims38 services$21.32 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

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

ANNA BARKER PMHNP-BC

Nurse Practitioner (Psychiatric/Mental Health)