1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Allergy Immunology
  6. NPI Profile

DR. ROBERT F. ONDER M.D.
NPI 1164533295
Allergy & Immunology - Allergy in Saint Louis, MO

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
20.68/100
CMS Quality Rating
711 OLD BALLAS RD, SUITE 100, SAINT LOUIS, MO 63141(314) 569-0510(314) 569-1085 Get Directions Write a Review

NPPES record last updated: October 18, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Robert F. Onder M.d. NPPES

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

DR. ROBERT F. ONDER M.D. (NPI 1164533295) is an individual allergy provider in Saint Louis, Missouri, licensed in Missouri (R9H42) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (1987).

NPPES Registry Identity

NPI1164533295
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameDR. ROBERT F. ONDERCredential: M.D.
Location Address711 OLD BALLAS RD, SUITE 100Saint Louis, MO 63141-7051
Mailing Address711 Old Ballas Rd, Suite 100Saint Louis, MO 63141-7051 · (314) 569-0510 · Fax (314) 569-1085
Phone(314) 569-0510
Fax(314) 569-1085
Sole ProprietorYes
Medical School CMSWashington University School Of MedicineGraduated 1987
Enumeration DateAugust 31, 2006
Last NPPES UpdateOctober 18, 2011
✔ NPI 1164533295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License✔ Licensed in MO · R9H42
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
711 OLD BALLAS RD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINE34491MO
Medicare ID-Type Unspecified000004785MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.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

Dr. Robert F. Onder 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 ID9931376878
PECOS Enrollment IDI20120118000449
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 Robert Onder reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Allergy And Asthma Consultants, PC
Same address
Allergy
711 OLD BALLAS RD., SUITE 100
St. Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 4 clinicians in this Medicare group
NPI 1427189950 (314) 569-0510

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 6

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.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
4,783 services110 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
2,297 services120 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.
130 services11 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 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.
51 services41 patients
Test to measure rate of airflow 94375
This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.
22 services21 patients
Administration and interpretation of patient-focused health risk assessment 96160
This procedure involves a detailed evaluation of your health to identify potential risks. It includes analyzing your medical history, lifestyle habits, and family health history. The results are interpreted to provide a personalized plan to improve your health and prevent future issues.
20 services19 patients

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.

20.68/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost68.94

Other Providers at the Same Location NPPES 8

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

ARNONE SPECIFIC CHIROPRACTIC
Chiropractor (Thermography)
711 OLD BALLAS RD, SUITE 104
CREVE COEUR, MO 63141
St. Louis County (314) 995-5719
MRS. THERESA MARIE BLESSING LPC, NBCC, LCPC
Counselor (Professional)
711 OLD BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 806-1025
MOLLY BERGAMINI
Social Worker (Clinical)
711 OLD BALLAS RD, SUITE 203
CREVE COEUR, MO 63141
St. Louis County (314) 569-2253
MRS. ROBIN B. CHERVITZ LCSW
Social Worker (Clinical)
711 OLD BALLAS RD, SUITE 212
SAINT LOUIS, MO 63141
St. Louis County (314) 995-0040
DEBORAH S. SCALLORN MA, LPC, CRC
Counselor (Professional)
711 OLD BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 569-2253
TERRY HASENZAHL LMFT
Marriage & Family Therapist
711 OLD BALLAS RD, SUITE 203
CREVE COEUR, MO 63141
St. Louis County (314) 569-2253
SHOW ME CARE INC
In Home Supportive Care
711 OLD BALLAS RD, SUITE 220
CREVE COEUR, MO 63141
St. Louis County (314) 324-0165
SPINE AND JOINT REHAB CENTER
Specialist
711 OLD BALLAS RD, SUITE 105
SAINT LOUIS, MO 63141
St. Louis County (314) 995-3008

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 Robert Onder's NPI number?

The NPI number for Robert Onder is 1164533295. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Robert Onder located?

Robert Onder practices at 711 Old Ballas Rd Suite 100, Saint Louis, MO 63141. The listed phone number is (314) 569-0510.

What is Robert Onder's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Robert Onder enrolled in Medicare?

Yes. Robert Onder 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 Robert Onder's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Onder reassigns Medicare benefits to Allergy And Asthma Consultants, PC (St. Louis, MO). 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 Robert Onder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Onder accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Robert Onder 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 Robert Onder was last updated on October 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.