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MARK B LONSTEIN M.D.
NPI 1891796173
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Sarasota, FL

Active since August 09, 2005PECOS EnrolledAccepts Medicare Assignment
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. NPPES

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

MARK B LONSTEIN M.D. (NPI 1891796173) is an individual orthopaedic surgery of the spine provider in Sarasota, Florida, licensed in Florida (ME0053529) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Sarasota Memorial Hospital, and is a graduate of Baylor College Of Medicine (1981).

NPPES Registry Identity

NPI1891796173
Entity TypeIndividualMale
Primary Taxonomy207XS0117X
Provider Legal NameMARK B LONSTEINCredential: M.D.
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
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 1981
Enumeration DateAugust 9, 2005
Last NPPES UpdateDecember 17, 2018
✔ NPI 1891796173 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians
Taxonomy Code207XS0117X
License✔ Licensed in FL · ME0053529
Definition
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.
2032 HILLVIEW ST, Sarasota, FL 34239
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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, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark B Lonstein 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 ID2264328574
PECOS Enrollment IDI20040224000969
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 Mark Lonstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mark. B. Lonstein M.D.P.A.
Same address
Orthopaedic Surgery
2032 HILLVIEW ST
Sarasota, FL 34239
  • Reassigned Medicare billing, Florida enrollment
  • Medicare enrollment name: Mark B Lonstein MD PA
  • 4 clinicians in this Medicare group
NPI 1609826734 (941) 917-6500

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 8

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
4,380 services56 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
73 services56 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.
66 services44 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
33 services33 patients
X-ray of lower and sacral spine, 2-3 views 72100
An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.
26 services24 patients
X-ray of lower and sacral spine, minimum of 4 views 72110
An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.
23 services17 patients

Hospital Affiliations CMS Care Compare

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

Sarasota Memorial Hospital

Acute Care Hospitals · Sarasota, FL
5/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number100087
Location1700 S Tamiami TrlSarasota, FL 34239 · Sarasota County
Emergency services Birthing friendly

Referred Medical Equipment & Supplies CMS DME claims 2

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

Lumbar-sacral orthosis, sagittal-coronal control, with rigid anterior and posterior frame/panel(s), posterior extends from sacrococcygeal junction to t-9 vertebra, lateral strength provided by rigid lateral frame/panel(s), produces intracavitary pressure to reduce load on intervertebral discs, includes straps, closures, may include padding, shoulder straps, pendulous abdomen design, prefabricated, off-the-shelf L0650
DME-Orthotic Devices · category DF007N
1 supplier16 claims16 services$672.29 avg. paid by Medicare
Lumbar-sacral orthosis, sagittal-coronal control, rigid shell(s)/panel(s), posterior extends from sacrococcygeal junction to t-9 vertebra, anterior extends from symphysis pubis to xyphoid, produces intracavitary pressure to reduce load on the intervertebral discs, overall strength is provided by overlapping rigid material and stabilizing closures, includes straps, closures, may include soft interface, pendulous abdomen design, prefabricated, off-the-shelf L0651
DME-Orthotic Devices · category DF007N
1 supplier26 claims26 services$635.67 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 3

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

MARK B. LONSTEIN, MD, PA
Non-Pharmacy Dispensing Site
2032 HILLVIEW ST
SARASOTA, FL 34239
Sarasota County (941) 917-6500
MARK. B. LONSTEIN M.D.P.A.
Orthopaedic Surgery
2032 HILLVIEW ST
SARASOTA, FL 34239
Sarasota County (941) 917-6500
MARK B. LONSTEIN, MD, PA
Specialist
2032 HILLVIEW ST
SARASOTA, FL 34239
Sarasota County (941) 917-6500

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 Lonstein's NPI number?

The NPI number for Mark Lonstein is 1891796173. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Mark Lonstein located?

Mark Lonstein practices at 2032 Hillview St, Sarasota, FL 34239. The listed phone number is (941) 917-6500.

What is Mark Lonstein's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Is Mark Lonstein enrolled in Medicare?

Yes. Mark Lonstein 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 organization bills Medicare for Mark Lonstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lonstein reassigns Medicare benefits to Mark. B. Lonstein M.D.P.A. (Sarasota, FL). The 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 Mark Lonstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Lonstein accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Mark Lonstein 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 Mark Lonstein affiliated with any hospitals?

According to CMS data, Mark Lonstein is affiliated with Sarasota Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mark Lonstein 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.