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ALEXANDER M CLARK JR. M.D.
NPI 1164434734
Orthopaedic Surgery in Potsdam, NY

Active since August 12, 2006PECOS EnrolledAccepts Medicare Assignment
94.24/100
CMS Quality Rating
49 LAWRENCE AVE, POTSDAM, NY 13676(315) 265-0394(315) 265-0396 Get Directions Write a Review

NPPES record last updated: December 14, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alexander M Clark Jr. M.d. NPPES

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

ALEXANDER M CLARK JR. M.D. (NPI 1164434734) is an individual orthopaedic surgery provider in Potsdam, New York, licensed in New York (223227) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Vassar Brothers Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (2000).

NPPES Registry Identity

NPI1164434734
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameALEXANDER M CLARK JR.Credential: M.D.
Location Address49 LAWRENCE AVEPotsdam, NY 13676-1889
Mailing Address49 Lawrence AvePotsdam, NY 13676-1889 · (315) 265-0394 · Fax (315) 265-0396
Phone(315) 265-0394
Fax(315) 265-0396
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2000
Enumeration DateAugust 12, 2006
Last NPPES UpdateDecember 14, 2012
✔ NPI 1164434734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in NY · 223227✔ Licensed in AZ · 35934
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License 35934 (AZ)
49 LAWRENCE AVE, Potsdam, NY 13676
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Other Identifiers 3

Medicare PINZ112004AZ
Medicaid124517AZ
Medicare UPINI38261AZ

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

Alexander M Clark Jr. 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 ID7618908799
PECOS Enrollment IDI20090528000638, I20130802000061
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

2

Medicare enrollment records show Alexander Clark reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Health Quest Medical Practice, PC
193 mi
Diagnostic Radiology
1240 ULSTER AVENUE
Kingston, NY 12401
  • Reassigned Medicare billing, New York and Connecticut enrollments
  • Medicare enrollment name: Nuvance Health Medical Practice PC
  • Also billed through NPI 1437358033 (Connecticut)
  • 638 clinicians in this Medicare group
NPI 1558906610 (845) 443-8720
Nuvance Health Medical Practice Ct, Inc.
238 mi
Internal Medicine
24 HOSPITAL AVE
Danbury, CT 06810
  • Reassigned Medicare billing, Connecticut enrollment
  • 818 clinicians in this Medicare group
NPI 1407898117 (203) 739-7742

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 10

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.

Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg J7325
Synvisc or Synvisc-One is a treatment involving an injection of a substance called hyaluronan into your joints. This substance, naturally found in the body, helps lubricate and cushion your joints, reducing pain and improving mobility. It's often used for arthritis patients.
753 services14 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
463 services262 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
227 services48 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
152 services152 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
137 services110 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
85 services56 patients

Hospital Affiliations CMS Care Compare 2

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

Vassar Brothers Medical Center

Acute Care Hospitals · Poughkeepsie, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330023
Location45 Reade PlacePoughkeepsie, NY 12601 · Dutchess County
Emergency services Birthing friendly

Northern Dutchess Hospital

Acute Care Hospitals · Rhinebeck, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330049
Location6511 Springbrook AvenueRhinebeck, NY 12572 · Dutchess 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
$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.

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.

94.24/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.26
Promoting Interoperability100
Improvement Activities40

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.

DAVID ABBATEMATTEO MD
Anesthesiology (Pain Medicine)
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 274-9075
MRS. JAIME BYINGTON BICKNELL PT
Physical Therapist
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 261-5460
CAITLYN DUPRAY DPT
Physical Therapist
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 261-5460
ASHLEY GRIMSHAW MD
Family Medicine
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 261-5550
REBECCA ANN MARTIN
Physical Therapist (Neurology)
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 264-5460
DAWN M. WHITE PA
Physician Assistant
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 261-5550
VINEET BANSAL
Family Medicine
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 261-5550
CASEY LYNN UNRUH RN BSN
Nurse Practitioner (Women's Health)
49 LAWRENCE AVE
POTSDAM, NY 13676
St. Lawrence County (315) 265-2153

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 Alexander Clark's NPI number?

The NPI number for Alexander Clark is 1164434734. It was assigned to this individual provider in the NPPES registry on August 12, 2006.

Where is Alexander Clark located?

Alexander Clark practices at 49 Lawrence Ave, Potsdam, NY 13676. The listed phone number is (315) 265-0394.

What is Alexander Clark's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Alexander Clark enrolled in Medicare?

Yes. Alexander Clark 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 Alexander Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Clark reassigns Medicare benefits to 2 organizations: Health Quest Medical Practice, PC (Kingston, NY) and Nuvance Health Medical Practice Ct, Inc. (Danbury, CT). 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 Alexander Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Alexander Clark affiliated with any hospitals?

According to CMS data, Alexander Clark is affiliated with Vassar Brothers Medical Center and Northern Dutchess Hospital.

When was this NPI record last updated?

The NPPES record for Alexander Clark was last updated on December 14, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.