Neuromuscul Disord
Amino Acid SequenceBlotting, WesternCell Differentiation
Dr. Zachary M. Berg, MD
NPI1255741278PAC ID3375762198
- Medicare services, 2024
- 2,140
- Medicare patients, 2024
- 594
- Part D claims, 2024
- 2,618
- Publications
- 2
- MIPS score, 2024
- 95
- Practice address
- 3 St Elizabeths Blvd, O'Fallon, IL 62269
- Practice phone
- Call (217) 523-5406
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
HSHS Medical Group Inc
O'Fallon, Illinois
Find Dr. Berg's professional email, personal email and mobile number
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Dr. Zachary M. Berg is a pulmonologist in O'Fallon, Illinois
Dr. Berg practices at HSHS Medical Group Inc in O'Fallon, Illinois.
Dr. Berg's NPI, 1255741278, was assigned on April 29, 2014. Dr. Berg graduated from University of Missouri, Columbia School of Medicine in 2014. Dr. Berg holds Illinois license 036150902.
NPI and contact details
- NPI
- 1255741278NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375762198
- NPI enumeration date
- April 29, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (217) 523-5406
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary M. Berg practices at HSHS Medical Group Inc in O'Fallon, Illinois
Dr. Berg's primary practice is HSHS Medical Group Inc, at 3 St Elizabeths Blvd, O'Fallon, IL 62269 in Saint Clair County. The practice phone is (217) 523-5406.
- HSHS Medical Group Inc3 St Elizabeths Blvd, O'Fallon, IL 62269 · Saint Clair CountyPhone(217) 523-5406
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Zachary M. Berg is affiliated with 7 sites of care and 1 medical group
Dr. Berg's primary practice is HSHS Medical Group Inc in O'Fallon, Illinois. Dr. Berg is also affiliated with HSHS St. Elizabeth's Hospital. The medical group on file is HSHS Medical Group. Dmand AI also links Dr. Berg to 4 more hospitals and 1 group practice or clinic, each named with a free account.
HSHS Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Zachary M. Berg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Berg practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HSHS Medical Group Inc | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary M. Berg is one of 517 pulmonologists in Illinois
Pulmonary disease is Dr. Berg's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Berg is licensed in Illinois.
Specialties and state licenses
- Pulmonary disease, IllinoisPrimary
Pulmonologists near Dr. Berg
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
517pulmonologists in Illinois
3pulmonologists in O'Fallon
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Zachary M. Berg billed Medicare for 2,140 services in 2024
CMS data shows 2,140 Medicare services from Dr. Berg across 13 procedure codes in 2024, for 594 Medicare patients. Medicare paid $117,280 for them.
Medicare services, 20242,140
Medicare patients594
Paid by Medicare$117,280
Procedure codes13
Dr. Berg's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0122024: 1,0978%
- Tests and treatments
- 2023: 4502024: 54621%
- Other services
- 2023: 02024: 497
Where Dr. Berg's Medicare services took place, 2024
- In an office1,19256%
- In a facility94844%
Dr. Berg compared with the Illinois median for pulmonologists, 2024
- Dr. Berg
- Illinois median
- Medicare services
- 2,140vs 7692.8 times
- Medicare patients
- 594vs 34174% above
- Part D claims
- 2,505vs 4925.1 times
Medians across 522 pulmonologists in Illinois with Dmand AI profiles that report each measure.
Dr. Berg'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.
Need commercial claims for Dr. Berg?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Berg and other pulmonologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary M. Berg treated 594 Medicare patients in 2024, average age 74
CMS counts 594 Medicare patients who saw Dr. Berg in 2024. The largest group is 65 to 74, with 258 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.81, 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. Berg's median patient age at 71, with 52% women.
Medicare patients, 2024594
Average age74
Average risk score1.81
Also on Medicaid14%
Dr. Berg's Medicare patients by age, 2024
Dr. Berg's Medicare patients by sex, 2024
- Women31052%
- Men28448%
Chronic conditions among Dr. Berg's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- COPD51%
- Ischemic heart disease49%
- Diabetes40%
- Heart failure39%
- Chronic kidney disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Berg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary M. Berg wrote 2,618 Medicare Part D claims in 2024
In 2024, Dr. Berg wrote 2,618 Medicare Part D claims for 436 patients. 32% of them were for generic drugs. CMS names the drug for 2,505 of them, across 29 drugs with 11 or more claims each, at $1,723,483 in total drug cost. In 2023, CMS named 2,067 claims across 26 drugs.
Part D claims, 20242,618
Drugs named by CMS29
Total drug cost$1.7M
Part D patients436
Dr. Berg's Part D claims by kind of drug, 2024
- Generic828 claims32%
- Brand-name1,790 claims68%
Dr. Berg'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. Berg's Part D claims, 2024
- Antibiotics4%103 of 2,618 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,0672024: 2,50521%
Drugs named by CMS: 29 in 2024, 26 in 2023.
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. Zachary M. Berg scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Berg for performance year 2024, reported through an alternative payment model (APM). Dr. Berg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Berg as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Berg's MIPS scores, performance year 2024
- 95of 100Final score
- 86of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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. Zachary M. Berg has 2 publications on record
Dmand AI links 2 papers to Dr. Berg, published from 2011 to 2014. Dr. Berg's most frequent co-authors are Dina Sufian Ahmad, MD, Matthew L. Bechtold, MD and Alisha Marie Hinds, DO.
Papers2
Years published2011 to 2014
Dr. Berg's most frequent co-authors
- Dina Sufian Ahmad, MD1 shared paper
- Matthew L. Bechtold, MD1 shared paper
- Alisha Marie Hinds, DO1 shared paper
Recent publications by Dr. Berg
See who Dr. Berg researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Berg works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Zachary M. Berg received $14,037 in industry payments from 2017 to 2025
CMS Open Payments shows 144 general payments to Dr. Berg from 19 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 41% of the total. Intuitive Surgical, Inc. paid the most, $9,995.
General payments to Dr. Berg by program year, 2017 to 2025
General payments to Dr. Berg by kind, 2017 to 2025
$14Kin total
- Travel and lodging$5,72541%
- Food and beverage$4,30731%
- Education$4,00629%
Companies that paid Dr. Berg the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary M. Berg graduated from University of Missouri, Columbia School of Medicine
Dr. Berg graduated from University of Missouri, Columbia School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary M. Berg'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Zachary M. Berg
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. Zachary M. Berg's NPI number?
Dr. Zachary M. Berg's NPI number is 1255741278. It was assigned on April 29, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary M. Berg?
Dr. Zachary M. Berg is a pulmonologist in O'Fallon, Illinois. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Zachary M. Berg practice?
Dr. Berg practices at 3 St Elizabeths Blvd, O'Fallon, IL 62269. Dr. Berg's primary practice is HSHS Medical Group Inc in O'Fallon, Illinois. Dmand AI also links Dr. Berg to 4 hospitals and 1 group practice or clinic.
What is Dr. Zachary M. Berg's office phone number?
The practice phone on file for Dr. Berg is (217) 523-5406.
What is Dr. Zachary M. Berg's medical license number?
Dr. Berg holds Illinois license 036150902.
Which hospitals is Dr. Zachary M. Berg affiliated with?
Dr. Berg is affiliated with HSHS St. Elizabeth's Hospital. Dmand AI links Dr. Berg to 4 more hospitals.
What medical group is Dr. Zachary M. Berg part of?
Dr. Berg is linked to HSHS Medical Group.
Does Dr. Zachary M. Berg accept Medicare?
Yes. CMS data shows Dr. Berg billed Medicare for 2,140 services in 2024, and Dr. Berg accepts Medicare assignment.
Does Dr. Zachary M. Berg offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Berg as offering telehealth services.
What is Dr. Zachary M. Berg's MIPS score?
Dr. Berg's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Zachary M. Berg see?
CMS counts 594 Medicare patients who saw Dr. Berg in 2024, with an average age of 74.
What services does Dr. Zachary M. Berg bill to Medicare?
In 2024, Dr. Berg's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and hospital inpatient care (99233).
Where did Dr. Zachary M. Berg go to medical school?
Dr. Berg graduated from University of Missouri, Columbia School of Medicine in 2014.
What drugs does Dr. Zachary M. Berg prescribe most?
In 2024 Medicare Part D data, Dr. Berg's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Montelukast Sodium.
Has Dr. Zachary M. Berg received payments from drug or device companies?
CMS Open Payments shows $14,037 in general payments to Dr. Berg from 19 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Zachary M. Berg been practicing?
Dr. Berg graduated from medical school in 2014, 12 years ago.
Does Dr. Zachary M. Berg do research?
Dmand AI links 2 publications to Dr. Berg, published from 2011 to 2014.
Who does Dr. Zachary M. Berg publish with?
Dr. Berg's most frequent co-authors are Dina Sufian Ahmad, MD (1 shared paper), Matthew L. Bechtold, MD (1 shared paper) and Alisha Marie Hinds, DO (1 shared paper).
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