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BEHFAR DIANATI M.D.
NPI 1558580852
Hospitalist in Belleville, IL

Active since April 25, 2007PECOS EnrolledAccepts Medicare Assignment
90.77/100
CMS Quality Rating
4550 MEMORIAL DR, STE. 340, BELLEVILLE, IL 62226(618) 257-6200(618) 257-6679 Get Directions Write a Review

NPPES record last updated: May 27, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 27, 2025, Apr 1, 2025 (2 updates tracked since 2025).

About Behfar Dianati M.d. NPPES

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

BEHFAR DIANATI M.D. (NPI 1558580852) is an individual hospitalist provider in Belleville, Illinois, licensed in Missouri (2007018749) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1558580852
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameBEHFAR DIANATICredential: M.D.
Location Address4550 MEMORIAL DR, STE. 340Belleville, IL 62226-5372
Mailing Address4550 Memorial Dr, Ste. 340Belleville, IL 62226-5372 · (618) 257-6200 · Fax (618) 257-6679
Phone(618) 257-6200
Fax(618) 257-6679
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateApril 25, 2007
Last NPPES UpdateMay 27, 20252 updates tracked since enumeration
NPPES CertifiedMay 27, 2025
✔ NPI 1558580852 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Licenses✔ Licensed in MO · 2007018749✔ Licensed in IL · 036124202
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036124202 (IL)
4550 MEMORIAL DR, Belleville, IL 62226
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Secondary Practice Location 1

Location 11201 S Grand BlvdSaint Louis, MO 63104-1016 · Phone (314) 617-2000

Other Identifiers 3

Other036124202IL · State License
Medicaid1558580852IL
Medicaid207340605MO

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

Behfar Dianati 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 ID4789785775
PECOS Enrollment IDI20091006000307
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

5

Medicare enrollment records show Behfar Dianati reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America - Illinois Snf, LLP
Same address
Infectious Disease
4500 MEMORIAL DR
Belleville, IL 62226
  • Reassigned Medicare billing, Illinois enrollment
  • 51 clinicians in this Medicare group
NPI 1003328329 (618) 233-7750
Cep America-Illinois Hospitalists, LLP
Same address
Internal Medicine
4500 MEMORIAL DR
Belleville, IL 62226
  • Reassigned Medicare billing, Illinois enrollment
  • 329 clinicians in this Medicare group
NPI 1841613403 (618) 233-7750
Cep America Illinois Intensivists
5.4 mi
Critical Care Medicine
1 SAINT ELIZABETH BLVD
O Fallon, IL 62269
  • Reassigned Medicare billing, Illinois enrollment
  • 99 clinicians in this Medicare group
NPI 1992204184 (618) 234-2120
Ssm Health Care Group
13 mi
Internal Medicine
1225 SOUTH GRAND BLVD, 2L - DOOR 3,4
Saint Louis, MO 63104
  • Reassigned Medicare billing, Missouri enrollment
  • 1,294 clinicians in this Medicare group
NPI 1306589544 (314) 977-6100
Galen Inpatient Physicians PC.
25 mi
Hospitalist
1015 BOWLES AVE
Fenton, MO 63026
  • Reassigned Medicare billing, Missouri and California enrollments
  • Also billed through NPI 1316037021 (California)
  • 93 clinicians in this Medicare group
NPI 1538714688 (636) 496-2000

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 9

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 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.
292 services129 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
220 services185 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
206 services186 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 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.
133 services75 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
123 services47 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
100 services93 patients

Hospital Affiliations CMS Care Compare 4

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

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140002
LocationOne Memorial DriveAlton, IL 62002 · Madison County
Emergency services Birthing friendly

Osf Saint Anthony's Health Center

Acute Care Hospitals · Alton, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140052
LocationSt Anthony's WayAlton, IL 62002 · Madison County

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260180
Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62226 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
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

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.

90.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.98
Improvement Activities40
Cost68.13

Referred Medical Equipment & Supplies CMS DME claims 8

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

Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
2 suppliers13 claims13 services$42.73 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
2 suppliers16 claims16 services$34.69 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers48 claims49 services$14.27 avg. paid by Medicare
Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630
DME-Other DME · category DE000N
1 supplier11 claims11 services$45.27 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers84 claims85 services$67.97 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
4 suppliers51 claims60 services$17.83 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.

MRS. DEANNA L. RODENBERG NP
Nurse Practitioner
4550 MEMORIAL DR, STE. 340
BELLEVILLE, IL 62226
St. Clair County (618) 257-6200
SHEIKH M SADIQ MD
Psychiatry & Neurology (Neurology)
4550 MEMORIAL DR, SUITE 340
BELLEVILLE, IL 62226
St. Clair County (618) 257-4243
DR. DWIGHT WILLIAM O'DELL M.D.
Obstetrics & Gynecology (Gynecology)
4550 MEMORIAL DR, STE 200
BELLEVILLE, IL 62226
St. Clair County (618) 233-5998
MEMORIAL MEDICAL GROUP, LLC
Internal Medicine
4550 MEMORIAL DR, STE. 340
BELLEVILLE, IL 62226
St. Clair County (618) 257-6302
BELLEVILLE ORTHOPEDICS, P.C.
Specialist
4550 MEMORIAL DR, SUITE 460
BELLEVILLE, IL 62226
St. Clair County (618) 235-2900
MSA ALLIANCE, LLC
Urology
4550 MEMORIAL DR, STE 350
BELLEVILLE, IL 62226
St. Clair County (618) 239-9690
LAKSHMI R. BEERAVOLU MD
Psychiatry & Neurology (Clinical Neurophysiology)
4550 MEMORIAL DR, STE. A480
BELLEVILLE, IL 62226
St. Clair County (618) 234-4531
CA GROUP, LLC
Internal Medicine (Cardiovascular Disease)
4550 MEMORIAL DR, STE 310
BELLEVILLE, IL 62226
St. Clair County (618) 257-6112

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 Behfar Dianati's NPI number?

The NPI number for Behfar Dianati is 1558580852. It was assigned to this individual provider in the NPPES registry on April 25, 2007.

Where is Behfar Dianati located?

Behfar Dianati practices at 4550 Memorial Dr Ste. 340, Belleville, IL 62226. The listed phone number is (618) 257-6200.

What is Behfar Dianati's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Behfar Dianati enrolled in Medicare?

Yes. Behfar Dianati 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 Behfar Dianati's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Behfar Dianati reassigns Medicare benefits to 5 organizations: Cep America - Illinois Snf, LLP (Belleville, IL), Cep America-Illinois Hospitalists, LLP (Belleville, IL), Cep America Illinois Intensivists (O Fallon, IL), Ssm Health Care Group (Saint Louis, MO) and Galen Inpatient Physicians PC. (Fenton, MO). 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 Behfar Dianati's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Behfar Dianati affiliated with any hospitals?

According to CMS data, Behfar Dianati is affiliated with Alton Memorial Hospital, Osf Saint Anthony's Health Center, Ssm Health Saint Louis University Hospital and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Behfar Dianati was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.