FREDERICK SEBASTIAN FLESZLER MD
NPI 1588758353
Internal Medicine - Nephrology in Allentown, PA

Q: What is Frederick Fleszler's NPI number?

The NPI number for Frederick Fleszler is 1588758353. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Q: What is Frederick Fleszler's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment

1230 S CEDAR CREST BLVD STES 301, 302, 304, ALLENTOWN, PA 18103(610) 432-4529(610) 432-2206 Get Directions Write a Review

NPPES record last updated: May 31, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Frederick Sebastian Fleszler Md NPPES

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

FREDERICK SEBASTIAN FLESZLER MD (NPI 1588758353) is an individual nephrology provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD428393) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with St Luke's Hospital Bethlehem, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1588758353

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameFREDERICK SEBASTIAN FLESZLERCredential: MD

Location Address1230 S CEDAR CREST BLVD STES 301, 302, 304Allentown, PA 18103-6212

Mailing Address1230 S Cedar Crest Blvd Ste 301Allentown, PA 18103-6212 · (610) 432-4529 · Fax (610) 432-2206

Phone(610) 432-4529

Fax(610) 432-2206

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateOctober 3, 2006

Last NPPES UpdateMay 31, 2022

NPPES CertifiedMay 31, 2022

✔ NPI 1588758353 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in PA · MD428393✔ Licensed in NJ · 25MA08358900

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

1230 S CEDAR CREST BLVD STES 301, 302, 304, Allentown, PA 18103

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Frederick Sebastian Fleszler 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 ID345249090

PECOS Enrollment IDI20061207000305, I20080620000498

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.

Areas of Expertise CMS Part B claims 12

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.

Follow-up hospital inpatient care per day, typically 25 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

459 services221 patients

Injection, epoetin alfa, (for non-esrd use), 1000 units J0885

Epoetin alfa is a medication injected to help your body produce more red blood cells, improving energy levels and reducing tiredness. It's often used for patients with certain types of anemia. Each injection contains 1000 units of the medicine.

294 services11 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

168 services89 patients

Established patient office or other outpatient visit, 30-39 minutes 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.

132 services91 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

105 services19 patients

Initial hospital inpatient care per day, typically 50 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

93 services93 patients

Home dialysis services per month (20 years or older) 90966

Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.

61 services12 patients

Established patient office or other outpatient visit, 20-29 minutes 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.

40 services36 patients

Dialysis procedure including 1 evaluation 90945

Dialysis is a treatment that filters and purifies the blood when your kidneys can't do their job. The procedure involves circulating your blood through a machine that removes waste products. An evaluation is done beforehand to assess your health and determine the best approach for your treatment.

34 services13 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.

27 services17 patients

Follow-up hospital inpatient care per day, typically 35 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

22 services21 patients

Initial hospital inpatient care per day, typically 30 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

St Luke's Hospital Bethlehem

Acute Care Hospitals · Bethlehem, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390049

Location801 Ostrum StreetBethlehem, PA 18015 · Northampton County

Emergency services Birthing friendly

Lehigh Valley Hospital

Acute Care Hospitals · Allentown, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390133

Location1200 South Cedar Crest BoulevardAllentown, PA 18103 · Lehigh County

Emergency services Birthing friendly

Lehigh Valley Hospital - Pocono

Acute Care Hospitals · East Stroudsburg, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390201

Location206 East Brown StreetEast Stroudsburg, PA 18301 · Monroe County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18103 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

$126.34 typical visit price

range $54.64 – $166.87

Typical copayment $31.58 (range $13.66 – $41.71)

Most-billed visit code 99204

Established Patient

$96.82 typical visit price

range $17.33 – $135.84

Typical copayment $24.20 (range $4.33 – $33.96)

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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

4 suppliers33 claims4,320 services$0.32 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier11 claims660 services$0.20 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

4 suppliers27 claims27 services$18.93 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

3 suppliers25 claims28 services$12.61 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 20

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

MR. DAVID K RATH PA-C

Physician Assistant (Medical)