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MARK. B. LONSTEIN M.D.P.A.
NPI 1609826734
Orthopaedic Surgery in Sarasota, FL

Active since May 11, 2006
2032 HILLVIEW ST, SARASOTA, FL 34239(941) 917-6500(941) 917-6504 Get Directions Write a Review

NPPES record last updated: December 17, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mark. B. Lonstein M.d.p.a. NPPES

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

MARK. B. LONSTEIN M.D.P.A. (NPI 1609826734) is a healthcare organization registered as an orthopaedic surgery in Sarasota, Florida and active in the NPI registry since May 2006. The organization lists Mark B Lonstein, President, as its authorized official.

NPPES Registry Identity

NPI1609826734
Entity TypeOrganization
Primary Taxonomy207X00000X
Legal Business NameMARK. B. LONSTEIN M.D.P.A.
Location Address2032 HILLVIEW STSarasota, FL 34239-2334
Mailing Address2032 Hillview StSarasota, FL 34239-2334 · (941) 917-6500 · Fax (941) 917-6504
Phone(941) 917-6500
Fax(941) 917-6504
Organization SubpartNo
Authorized OfficialMark B LonsteinPresident · (941) 917-6500
Enumeration DateMay 11, 2006
Last NPPES UpdateDecember 17, 2018
✔ NPI 1609826734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
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 ListedPhysical TherapistTaxonomy 225100000X
2032 HILLVIEW ST, Sarasota, FL 34239
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark. B. Lonstein M.d.p.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Mark. B. Lonstein M.D.P.A., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 4 within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Mark Lonstein, M.D.
Orthopedic Surgery
NPI 1891796173
2032 HILLVIEW ST
Sarasota, FL 34239
(941) 917-6500
✔ PECOS✔ Accepts MedicareSame address
William Dinenberg, MD
Orthopedic Surgery
NPI 1770556334
1921 WALDEMERE ST SUITE 609
Sarasota, FL 34239
(941) 917-6500
✔ PECOS✔ Accepts Medicare0.3 mi
Randall Morgan, M.D.
Orthopedic Surgery
NPI 1356335111
2750 BAHIA VISTA STREET SUITE 100
Sarasota, FL 34239
(941) 951-2663
✔ PECOS1.0 mi
Kristin Fenix
Physical Therapist in Private Practice
NPI 1275958977
7157 CURTISS AVE
Sarasota, FL 34231
(941) 924-9525
4.8 mi

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

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 Mark. B. Lonstein M.D.P.A.'s NPI number?

The NPI number for Mark. B. Lonstein M.D.P.A. is 1609826734. It was assigned to this organization in the NPPES registry on May 11, 2006.

Where is Mark. B. Lonstein M.D.P.A. located?

Mark. B. Lonstein M.D.P.A. is located at 2032 Hillview St, Sarasota, FL 34239. The listed phone number is (941) 917-6500.

What is Mark. B. Lonstein M.D.P.A.'s specialty?

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

Is Mark. B. Lonstein M.D.P.A. enrolled in Medicare?

Yes. Mark. B. Lonstein M.D.P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mark. B. Lonstein M.D.P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians in 2 Medicare specialties reassign their Medicare billing to Mark. B. Lonstein M.D.P.A.. A 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 the clinician's services. The largest specialties are Orthopedic Surgery (3) and Physical Therapist in Private Practice (1). Of these, 1 practice at this address and 4 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mark. B. Lonstein M.D.P.A. accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Mark. B. Lonstein M.D.P.A. 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.

When was this NPI record last updated?

The NPPES record for Mark. B. Lonstein M.D.P.A. was last updated on December 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.