Dr. Ofer Zimmerman, MD
- Medicare services, 2024
- 119
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 193
- MIPS score, 2024
- 84
- Hospital affiliations
- 3
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zimmerman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ofer Zimmerman is an allergy and immunology (internal medicine) physician in Saint Louis, Missouri
Dr. Zimmerman practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Zimmerman's NPI, 1982128708, was assigned on August 2, 2017. Dr. Zimmerman holds Missouri license 2022024180.
- NPI
- 1982128708NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173925377
- NPI enumeration date
- August 2, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ofer Zimmerman practices at 2 locations in Saint Louis, Missouri
Dr. Zimmerman's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Zimmerman also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Ofer Zimmerman is affiliated with 4 sites of care and 1 medical group
Dr. Zimmerman's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dr. Zimmerman is also affiliated with Barnes-Jewish West County Hospital. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Zimmerman to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ofer Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ofer Zimmerman is one of 28 allergys and immunology (internal medicine) physicians in Missouri
Allergy and immunology is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207RA0201X. Dr. Zimmerman is licensed in Missouri.
Specialties and state licenses
- Allergy and immunology (internal medicine), MissouriPrimary
Allergys and immunology (internal medicine) physicians near Dr. Zimmerman
Counts of allergys and immunology (internal medicine) physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ofer Zimmerman billed Medicare for 119 services in 2024
CMS data shows 119 Medicare services from Dr. Zimmerman across 4 procedure codes in 2024, for 50 Medicare patients. Medicare paid $9,561 for them. Every service was in an office.
Dr. Zimmerman's Medicare services by type, 2024
- Office and hospital visits78
- Other services41
Dr. Zimmerman compared with the Missouri median for allergys and immunology (internal medicine) physicians, 2024
- Dr. Zimmerman
- Missouri median
- Medicare services
- 119vs 1,40692% below
- Medicare patients
- 50vs 19875% below
- Part D claims
- 106vs 18242% below
Medians across 26 allergys and immunology (internal medicine) physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Zimmerman's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimmerman and other allergys and immunology (internal medicine) physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ofer Zimmerman treated 50 Medicare patients in 2024, average age 66
CMS counts 50 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 65 to 74, with 20 patients. 70% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 2.38, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 62, with 69% women.
Dr. Zimmerman's Medicare patients by age, 2024
Dr. Zimmerman's Medicare patients by sex, 2024
- Women3366%
- Men1734%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- High blood pressure70%
- High cholesterol68%
- Arthritis50%
- Anxiety44%
- Mood disorders38%
- Depression36%
- COPD34%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women69%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ofer Zimmerman wrote 193 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 193 Medicare Part D claims for 38 patients. 57% of them were for generic drugs. CMS names the drug for 106 of them, across 5 drugs with 11 or more claims each, at $345,880 in total drug cost.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic110 claims57%
- Brand-name and other83 claims43%
Dr. Zimmerman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Zimmerman's Part D claims, 2024
- Antibiotics24%47 of 193 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ofer Zimmerman scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Zimmerman for performance year 2024, reported as part of a group. Dr. Zimmerman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zimmerman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Zimmerman's MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ofer Zimmerman received $37 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Zimmerman from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Pfizer Inc. paid the most, $37.
Companies that paid Dr. Zimmerman the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ofer Zimmerman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ofer Zimmerman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ofer Zimmerman's NPI number?
Dr. Ofer Zimmerman's NPI number is 1982128708. It was assigned on August 2, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Ofer Zimmerman?
Dr. Ofer Zimmerman is an allergy and immunology (internal medicine) physician in Saint Louis, Missouri. The primary specialty in the NPI Registry is Allergy & Immunology (Internal Medicine) Physician (taxonomy code 207RA0201X).
Where does Dr. Ofer Zimmerman practice?
Dr. Zimmerman practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Zimmerman also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Zimmerman's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Zimmerman to 1 hospital and 1 group practice or clinic.
What is Dr. Ofer Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (314) 747-3000.
What is Dr. Ofer Zimmerman's medical license number?
Dr. Zimmerman holds Missouri license 2022024180.
Which hospitals is Dr. Ofer Zimmerman affiliated with?
Dr. Zimmerman practices at Barnes-Jewish Hospital in Saint Louis, Missouri. Dr. Zimmerman is also affiliated with Barnes-Jewish West County Hospital. Dmand AI links Dr. Zimmerman to 1 more hospital.
What medical group is Dr. Ofer Zimmerman part of?
Dr. Zimmerman is linked to WashU Medicine Psychiatry.
Does Dr. Ofer Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 119 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
Does Dr. Ofer Zimmerman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zimmerman as offering telehealth services.
What is Dr. Ofer Zimmerman's MIPS score?
Dr. Zimmerman's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Ofer Zimmerman see?
CMS counts 50 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 66.
What services does Dr. Ofer Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and office visit, established patient (99214).
What drugs does Dr. Ofer Zimmerman prescribe most?
In 2024 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Cuvitru, Xembify and Prednisone.
Has Dr. Ofer Zimmerman received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to Dr. Zimmerman from 1 company from 2025 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Ofer Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 2005, 21 years ago.
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