DR. HARRY GUS GREDITZER IV M.D.
NPI 1174753982
Radiology - Diagnostic Radiology in Saint Louis, MO

Q: What is Harry Greditzer's NPI number?

The NPI number for Harry Greditzer is 1174753982. It was assigned to this individual provider in the NPPES registry on July 15, 2009.

Q: What is Harry Greditzer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Harry Greditzer was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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 July 15, 2009PECOS EnrolledAccepts Medicare Assignment

7733 FORSYTH BLVD, SAINT LOUIS, MO 63105(212) 606-1015 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 5, 2025, Apr 8, 2021, Sep 23, 2020 (3 updates tracked since 2020).

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About Dr. Harry Gus Greditzer Iv M.d. NPPES

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

DR. HARRY GUS GREDITZER IV M.D. (NPI 1174753982) is an individual diagnostic radiology provider in Saint Louis, Missouri, licensed in Missouri (2015043933) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, is affiliated with Hospital For Special Surgery, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1174753982

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. HARRY GUS GREDITZER IVCredential: M.D.

Location Address7733 FORSYTH BLVDSaint Louis, MO 63105-1817

Mailing Address535 E 70th StNew York, NY 10021-4823 · (212) 606-1015

Phone(212) 606-1015

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateJuly 15, 2009

Last NPPES UpdateNovember 5, 20253 updates tracked since enumeration

NPPES CertifiedNovember 5, 2025

✔ NPI 1174753982 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in MO · 2015043933✔ Licensed in FL · ME112133✔ Licensed in NY · 274799

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedInternal MedicineTaxonomy 207R00000X · License 2009020446 (MO)

7733 FORSYTH BLVD, Saint Louis, MO 63105

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida.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

Dr. Harry Gus Greditzer Iv 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 ID6709175052

PECOS Enrollment IDI20160517001543, I20170822000489, I20171025001194, I20200213001465

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 13

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.

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

134 services112 patients

Mri scan of leg joint without contrast 73721

An MRI scan of your leg joint is a non-invasive procedure that uses magnetic fields and radio waves to create detailed images of the structures within your leg. This helps doctors diagnose or monitor conditions without using contrast dye.

108 services94 patients

Mri scan of lower spinal canal without contrast 72148

68 services68 patients

Mri scan of leg joint without contrast 73721

51 services49 patients

Mri scan of arm joint without contrast 73221

An MRI scan of the arm joint is a non-invasive imaging procedure that uses magnetic fields and radio waves to create detailed images of the structures within your arm joint. No contrast dye is used in this process. It helps to diagnose or monitor conditions like arthritis, injuries, or infections.

48 services42 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

45 services37 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

45 services43 patients

Mri scan of arm joint without contrast 73221

27 services26 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

26 services24 patients

Ct scan of arm without contrast 73200

A CT scan of the arm without contrast is a non-invasive imaging test. It uses X-ray technology to capture detailed images of your arm's structures. It doesn't involve any contrasting dye, hence, minimal preparation is required. It helps in diagnosing injuries or conditions affecting the arm.

23 services23 patients

Mri scan of upper spinal canal without contrast 72141

22 services22 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

21 services21 patients

Limited ultrasound scan of joint or other extremity structure except blood vessels 76882

A limited ultrasound scan of a joint or other extremity structure lacking blood vessels is a non-invasive procedure that uses sound waves to create images of the inside of your body. This helps in diagnosing and monitoring conditions related to your joints or other similar structures.

12 services11 patients

Hospital Affiliations CMS Care Compare

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

Hospital For Special Surgery

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330270

Location535 East 70th StreetNew York, NY 10021 · New York County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63105 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

$86.32 typical visit price

range $55.65 – $169.38

Typical copayment $21.58 (range $13.91 – $42.34)

Most-billed visit code 99203

Established Patient

$69.50 typical visit price

range $17.76 – $137.92

Typical copayment $17.37 (range $4.44 – $34.48)

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.

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.

MS. MARTHA J RUBINELLI

Physical Therapist

7733 FORSYTH BLVD, SUITE 1700
SAINT LOUIS, MO 63105

St. Louis County (314) 863-7422

MRS. PIPER L PALMER P.T.

Physical Therapist

7733 FORSYTH BLVD
CLAYTON, MO 63105

St. Louis County (800) 677-1238

IVANA HANZELKOVA LPTA

Physical Therapy Assistant

7733 FORSYTH BLVD
SAINT LOUIS, MO 63105

St. Louis County (800) 677-1202

DENISE VH SIMMONS MA CCC-SLP

Speech-Language Pathologist

7733 FORSYTH BLVD, SUITE 1700
SAINT LOUIS, MO 63105

St. Louis County (800) 677-1238

MRS. CAROLINE M KEANE PT

Physical Therapist

7733 FORSYTH BLVD
SAINT LOUIS, MO 63105

St. Louis County (314) 677-1202

MS. KATIE MARIE JENKINS OTR/L

Occupational Therapist

7733 FORSYTH BLVD
SAINT LOUIS, MO 63105

St. Louis County (314) 375-1025

TONI FAYE KINWORTHY O.T.R.

Occupational Therapist

7733 FORSYTH BLVD, SUITE 2300
SAINT LOUIS, MO 63105

St. Louis County (800) 677-1238

VALERIE ANN LONG PTA

Physical Therapy Assistant

7733 FORSYTH BLVD
SAINT LOUIS, MO 63105

St. Louis County (800) 677-1238

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 Harry Greditzer's NPI number?

The NPI number for Harry Greditzer is 1174753982. It was assigned to this individual provider in the NPPES registry on July 15, 2009.

Where is Harry Greditzer located?

Harry Greditzer practices at 7733 Forsyth Blvd, Saint Louis, MO 63105. The listed phone number is (212) 606-1015.

What is Harry Greditzer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Harry Greditzer enrolled in Medicare?

Yes. Harry Greditzer 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.

What insurance does Harry Greditzer accept?

Health plans from Oscar Health Maintenance Organization of Florida list Harry Greditzer 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 Harry Greditzer affiliated with any hospitals?

According to CMS data, Harry Greditzer is affiliated with Hospital For Special Surgery.

When was this NPI record last updated?

The NPPES record for Harry Greditzer was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.