Dr. Gregory J. Zipfel, MD
- Medicare services, 2024
- 128
- Medicare patients, 2024
- 145
- Part D claims, 2024
- 86
- Publications
- 144
- Hospital affiliations
- 5
- 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. Zipfel's professional email, personal email and mobile number
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Dr. Gregory J. Zipfel is a neurosurgeon in Saint Louis, Missouri
Dr. Zipfel practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Zipfel's NPI, 1255357489, was assigned on July 14, 2006. Dr. Zipfel graduated from Northwestern University Feinberg Medical School in 1995. Dr. Zipfel holds Missouri license 2004012272.
- NPI
- 1255357489NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395713523
- NPI enumeration date
- July 14, 2006
- 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
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory J. Zipfel practices at 2 locations in Saint Louis, Missouri
Dr. Zipfel'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. Zipfel 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. Gregory J. Zipfel is affiliated with 6 sites of care and 1 medical group
Dr. Zipfel's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dr. Zipfel is also affiliated with Missouri Baptist Medical Center. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Zipfel to 3 more hospitals 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. Gregory J. Zipfel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zipfel practices, 6 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 |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory J. Zipfel is one of 173 neurosurgeons in Missouri
Neurological surgery is Dr. Zipfel's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Zipfel is licensed in Missouri.
Specialties and state licenses
- Neurological surgery, MissouriPrimary
Neurosurgeons near Dr. Zipfel
Counts of neurosurgeons 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. Gregory J. Zipfel billed Medicare for 128 services in 2024
CMS data shows 128 Medicare services from Dr. Zipfel across 3 procedure codes in 2024, for 145 Medicare patients. Medicare paid $8,560 for them.
Dr. Zipfel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1542024: 12817%
- Surgery
- 2023: 112024: 0100%
Where Dr. Zipfel's Medicare services took place, 2024
- In an office11691%
- In a facility129%
Dr. Zipfel compared with the Missouri median for neurosurgeons, 2024
- Dr. Zipfel
- Missouri median
- Medicare services
- 128vs 21340% below
- Medicare patients
- 145vs 16210% below
- Part D claims
- 52vs 9243% below
Medians across 162 neurosurgeons in Missouri with Dmand AI profiles that report each measure.
Dr. Zipfel'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. Zipfel and other neurosurgeons in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory J. Zipfel treated 145 Medicare patients in 2024, average age 72
CMS counts 145 Medicare patients who saw Dr. Zipfel in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zipfel's median patient age at 68, with 56% women.
Dr. Zipfel's Medicare patients by age, 2024
Dr. Zipfel's Medicare patients by sex, 2024
- Women9666%
- Men4934%
Chronic conditions among Dr. Zipfel's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Anxiety32%
- Mood disorders32%
- Depression31%
- Chronic kidney disease27%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zipfel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory J. Zipfel wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Zipfel wrote 86 Medicare Part D claims for 40 patients. 86% of them were for generic drugs. CMS names the drug for 52 of them, across 2 drugs with 11 or more claims each, at $701 in total drug cost. In 2023, CMS named 48 claims across 2 drugs.
Dr. Zipfel's Part D claims by kind of drug, 2024
- Generic74 claims86%
- Brand-name12 claims14%
Dr. Zipfel'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 482024: 528%
Drugs named by CMS: 2 in 2024, 2 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. Gregory J. Zipfel offers telehealth to Medicare patients
Dr. Zipfel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zipfel as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory J. Zipfel has 144 publications on record
Dmand AI links 144 papers to Dr. Zipfel, published from 2014 to 2025. 2021 was the busiest year, with 21. The most frequent topics are Subarachnoid Hemorrhage, Brain Ischemia and Central Nervous System Vascular Malformations. Dr. Zipfel has published most often in J Neurosurg. Dr. Zipfel's most frequent co-authors are Ralph Gerard Dacey, MD, Michael R. Chicoine, MD and Ananth Kesav Vellimana, MD.
Dr. Zipfel's papers by year, 2016 to 2025
Topics Dr. Zipfel writes about most
- Subarachnoid Hemorrhage
- Brain Ischemia
- Central Nervous System Vascular Malformations
- Intracranial Aneurysm
- Vasospasm, Intracranial
- Embolization, Therapeutic
- Disease Models, Animal
- Magnetic Resonance Imaging
Dr. Zipfel's most frequent co-authors
- Ralph Gerard Dacey, MD38 shared papers
- Michael R. Chicoine, MD30 shared papers
- Ananth Kesav Vellimana, MD29 shared papers
Recent publications by Dr. Zipfel
See who Dr. Zipfel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zipfel works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory J. Zipfel received $7,128 in industry payments from 2016 to 2025
CMS Open Payments shows 24 general payments to Dr. Zipfel from 11 drug and device companies from 2016 to 2025. Accredited education speaker fees make up the largest share, 39% of the total. Synthes GmbH paid the most, $4,053.
General payments to Dr. Zipfel by program year, 2016 to 2025
General payments to Dr. Zipfel by kind, 2016 to 2025
- Accredited education speaker fees$2,75039%
- Travel and lodging$2,06629%
- Food and beverage$1,31218%
- Consulting fees$1,00014%
Companies that paid Dr. Zipfel the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory J. Zipfel graduated from Northwestern University Feinberg Medical School
Dr. Zipfel graduated from Northwestern University Feinberg Medical School in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory J. Zipfel'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) |
| 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. Gregory J. Zipfel
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. Gregory J. Zipfel's NPI number?
Dr. Gregory J. Zipfel's NPI number is 1255357489. It was assigned on July 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory J. Zipfel?
Dr. Gregory J. Zipfel is a neurosurgeon in Saint Louis, Missouri. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Gregory J. Zipfel practice?
Dr. Zipfel practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Zipfel also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Zipfel's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Zipfel to 3 hospitals and 1 group practice or clinic.
What is Dr. Gregory J. Zipfel's office phone number?
The practice phone on file for Dr. Zipfel is (314) 747-3000.
What is Dr. Gregory J. Zipfel's medical license number?
Dr. Zipfel holds Missouri license 2004012272.
Which hospitals is Dr. Gregory J. Zipfel affiliated with?
Dr. Zipfel practices at Barnes-Jewish Hospital in Saint Louis, Missouri. Dr. Zipfel is also affiliated with Missouri Baptist Medical Center. Dmand AI links Dr. Zipfel to 3 more hospitals.
What medical group is Dr. Gregory J. Zipfel part of?
Dr. Zipfel is linked to WashU Medicine Psychiatry.
Does Dr. Gregory J. Zipfel accept Medicare?
Yes. CMS data shows Dr. Zipfel billed Medicare for 128 services in 2024, and Dr. Zipfel accepts Medicare assignment.
Does Dr. Gregory J. Zipfel offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zipfel as offering telehealth services.
How many Medicare patients does Dr. Gregory J. Zipfel see?
CMS counts 145 Medicare patients who saw Dr. Zipfel in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
What services does Dr. Gregory J. Zipfel bill to Medicare?
In 2024, Dr. Zipfel's most billed Medicare services were office visit, established patient (99212), office visit, new patient (99204) and care management and other visits (99441).
Where did Dr. Gregory J. Zipfel go to medical school?
Dr. Zipfel graduated from Northwestern University Feinberg Medical School in 1995.
What drugs does Dr. Gregory J. Zipfel prescribe most?
In 2024 Medicare Part D data, Dr. Zipfel's most prescribed drugs by claims were Levetiracetam and Mupirocin.
Has Dr. Gregory J. Zipfel received payments from drug or device companies?
CMS Open Payments shows $7,128 in general payments to Dr. Zipfel from 11 companies from 2016 to 2025. The largest total came from Synthes GmbH.
How long has Dr. Gregory J. Zipfel been practicing?
Dr. Zipfel graduated from medical school in 1995, 31 years ago.
Does Dr. Gregory J. Zipfel do research?
Dmand AI links 144 publications to Dr. Zipfel, published from 2014 to 2025.
Who does Dr. Gregory J. Zipfel publish with?
Dr. Zipfel's most frequent co-authors are Ralph Gerard Dacey, MD (38 shared papers), Michael R. Chicoine, MD (30 shared papers) and Ananth Kesav Vellimana, MD (29 shared papers).
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