BrainNeuronal PlasticityNeurosurgery
Dr. Glenn Mark Fischberg, MD
NPI1093784951PAC ID1759398571
- Medicare services, 2024
- 162
- Medicare patients, 2024
- 54
- Publications
- 9
- Hospital affiliations
- 3
- Industry payments
- $48
- Practice address
- 400 North Pepper Avenue, Colton, CA 92324
- Practice phone
- Call (909) 580-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fischberg's professional email, personal email and mobile number
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Dr. Glenn Mark Fischberg is a neurologist in Colton, California
Dr. Fischberg practices at Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County.
Dr. Fischberg's NPI, 1093784951, was assigned on March 14, 2006. Dr. Fischberg graduated from New York University School of Medicine in 1993. Dr. Fischberg holds California license G83991.
NPI and contact details
- NPI
- 1093784951NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759398571
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Practice phone
- (909) 580-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Glenn Mark Fischberg practices at Arrowhead Regional Medical Center in Colton, California
Dr. Fischberg's primary practice is Arrowhead Regional Medical Center, at 400 North Pepper Avenue, Colton, CA 92324 in San Bernardino County. The practice phone is (909) 580-1000.
- Arrowhead Regional Medical Center400 North Pepper Avenue, Colton, CA 92324 · San Bernardino CountyPhone(909) 580-1000
Source: Dmand AI Affiliation Data
Dr. Glenn Mark Fischberg is affiliated with 3 sites of care and 7 medical groups
Dr. Fischberg's primary practice is Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County. Dr. Fischberg is also affiliated with Redlands Community Hospital. The medical group on file is San Bernardino County Behavioral Health. Dmand AI also links Dr. Fischberg to 1 more hospital and 6 medical groups, each named with a free account.
Redlands Community HospitalSan Bernardino County Behavioral Health1 hospitalName with a free account6 medical groupsNames with a free account
See all 10 affiliations for Dr. FischbergSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Glenn Mark Fischberg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fischberg practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arrowhead Regional Medical Center | Available with a free account |
| +2 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Glenn Mark Fischberg is one of 2,207 neurologists in California
Neurology is Dr. Fischberg's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Fischberg is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Fischberg's licenses on file in 4 states: California, Arizona, Nevada and Pennsylvania.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- Arizona license
- Nevada license
- Pennsylvania license
Clinical focus
Dmand AI lists stroke among the conditions Dr. Fischberg treats.
Neurologists near Dr. Fischberg
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
2,207neurologists in California11neurologists in Colton9neurologists at Arrowhead Regional Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Glenn Mark Fischberg billed Medicare for 162 services in 2024
CMS data shows 162 Medicare services from Dr. Fischberg across 5 procedure codes in 2024, for 54 Medicare patients. Medicare paid $18,390 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024162
Medicare patients54
Paid by Medicare$18,390
Procedure codes5
Dr. Fischberg's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 902024: 16280%
Dr. Fischberg compared with the California median for neurologists, 2024
- Dr. Fischberg
- California median
- Medicare services
- 162vs 40460% below
- Medicare patients
- 54vs 19072% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Fischberg'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. Fischberg?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fischberg and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Glenn Mark Fischberg treated 54 Medicare patients in 2024, average age 73
CMS counts 54 Medicare patients who saw Dr. Fischberg in 2024. The largest group is 65 to 74, with 26 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.22, 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. Fischberg's median patient age at 65, with 51% women.
Medicare patients, 202454
Average age73
Average risk score2.22
Also on Medicaid59%
Dr. Fischberg's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fischberg's Medicare patients by sex, 2024
- Women3157%
- Men2343%
Chronic conditions among Dr. Fischberg's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Diabetes54%
- Heart failure52%
- Arthritis46%
- Mood disorders46%
- Chronic kidney disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fischberg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
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Dr. Glenn Mark Fischberg has 9 publications on record
Dmand AI links 9 papers to Dr. Fischberg, published from 2018 to 2020. 2019 was the busiest year, with 3. The most frequent topics are Stroke. Dr. Fischberg has published most often in Cureus. Dr. Fischberg's most frequent co-authors are Mark J. Fisher, MD, Deependra Mahato, DO and David D. Nacionales, DO.
Papers9
Years published2018 to 2020
Dr. Fischberg's papers by year, 2018 to 2020
Topics Dr. Fischberg writes about most
- Stroke
Dr. Fischberg's most frequent co-authors
- Mark J. Fisher, MD2 shared papers
- Deependra Mahato, DO2 shared papers
- David D. Nacionales, DO2 shared papers
Recent publications by Dr. Fischberg
Clin Neurol Neurosurg
Amphotericin BAntifungal AgentsCoccidioidomycosis
See who Dr. Fischberg researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fischberg works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Glenn Mark Fischberg received $48 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Fischberg from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $48.
Companies that paid Dr. Fischberg the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Glenn Mark Fischberg graduated from New York University School of Medicine
Dr. Fischberg graduated from New York University School of Medicine in 1993.
- Medical school
- Board certified in neurology
- Board certified in vascular neurology
- Board certified in neurocritical care
Source: Dmand AI Professional Profile Data
Dr. Glenn Mark Fischberg accepts plans from 6 insurance carriers
Dr. Fischberg is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
Plan types Dr. Fischberg accepts, by number of carriers
- Medicare6
- PPO4
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Glenn Mark Fischberg'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 | Dmand AI Affiliation 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) |
| 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Glenn Mark Fischberg
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. Glenn Mark Fischberg's NPI number?
Dr. Glenn Mark Fischberg's NPI number is 1093784951. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Glenn Mark Fischberg?
Dr. Glenn Mark Fischberg is a neurologist in Colton, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Glenn Mark Fischberg practice?
Dr. Fischberg practices at 400 North Pepper Avenue, Colton, CA 92324. Dr. Fischberg's primary practice is Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County. Dmand AI also links Dr. Fischberg to 1 hospital and 6 medical groups.
What is Dr. Glenn Mark Fischberg's office phone number?
The practice phone on file for Dr. Fischberg is (909) 580-1000.
What is Dr. Glenn Mark Fischberg's medical license number?
Dr. Fischberg holds California license G83991, one of the licenses on file in 4 states.
Which states has Dr. Glenn Mark Fischberg been licensed in?
Dmand AI has state licenses on file for Dr. Fischberg in California (1997 to 2027), Arizona (2022 to 2027), Nevada (2005 to 2027) and Pennsylvania (2010 to 2016).
Which hospitals is Dr. Glenn Mark Fischberg affiliated with?
Dr. Fischberg practices at Arrowhead Regional Medical Center in Colton, California. Dr. Fischberg is also affiliated with Redlands Community Hospital. Dmand AI links Dr. Fischberg to 1 more hospital.
What medical group is Dr. Glenn Mark Fischberg part of?
Dr. Fischberg is linked to San Bernardino County Behavioral Health. Dmand AI links Dr. Fischberg to 6 more medical groups.
Does Dr. Glenn Mark Fischberg accept Medicare?
Yes. CMS data shows Dr. Fischberg billed Medicare for 162 services in 2024.
How many Medicare patients does Dr. Glenn Mark Fischberg see?
CMS counts 54 Medicare patients who saw Dr. Fischberg in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. Glenn Mark Fischberg board certified?
Yes. Dr. Fischberg is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Glenn Mark Fischberg bill to Medicare?
In 2024, Dr. Fischberg's most billed Medicare services were critical care (99291), critical care (99292) and hospital inpatient care (99232).
Where did Dr. Glenn Mark Fischberg go to medical school?
Dr. Fischberg graduated from New York University School of Medicine in 1993.
Has Dr. Glenn Mark Fischberg received payments from drug or device companies?
CMS Open Payments shows $48 in general payments to Dr. Fischberg from 1 company from 2025 to 2025. The largest total came from Abiomed.
How long has Dr. Glenn Mark Fischberg been practicing?
Dr. Fischberg graduated from medical school in 1993, 33 years ago.
Does Dr. Glenn Mark Fischberg do research?
Dmand AI links 9 publications to Dr. Fischberg, published from 2018 to 2020.
Who does Dr. Glenn Mark Fischberg publish with?
Dr. Fischberg's most frequent co-authors are Mark J. Fisher, MD (2 shared papers), Deependra Mahato, DO (2 shared papers) and David D. Nacionales, DO (2 shared papers).
What insurance does Dr. Glenn Mark Fischberg accept?
Dr. Fischberg is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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