Dr. Maria Virginia Diaz, MD
- Medicare services, 2024
- 293
- Medicare patients, 2024
- 118
- Part D claims, 2019
- 30
- Hospital affiliations
- 1
- Industry payments
- $624
- Practice address
- 5501 Old York Road, Philadelphia, PA 19141
- Practice phone
- Call (215) 456-6090
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Diaz's professional email, personal email and mobile number
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Dr. Maria Virginia Diaz is a neurologist in Philadelphia, Pennsylvania
Dr. Diaz practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University.
Dr. Diaz's NPI, 1356791693, was assigned on June 17, 2016. Dr. Diaz holds Pennsylvania license MD473227.
- NPI
- 1356791693NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880093491
- NPI enumeration date
- June 17, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 456-6090
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maria Virginia Diaz practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania
Dr. Diaz's primary practice is Jefferson Einstein Philadelphia Hospital, at 5501 Old York Road, Philadelphia, PA 19141 in Philadelphia County. The practice phone is (215) 456-6090.
- Jefferson Einstein Philadelphia Hospital5501 Old York Road, Philadelphia, PA 19141 · Philadelphia CountyPhone(215) 456-6090
Source: Dmand AI Affiliation Data
Dr. Maria Virginia Diaz is affiliated with 2 sites of care and 1 medical group
Dr. Diaz's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. The medical group on file is Einstein Gastroenterology Associates. Dmand AI also links Dr. Diaz to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Maria Virginia Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Einstein Philadelphia Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Maria Virginia Diaz is one of 910 neurologists in Pennsylvania
Neurology is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Diaz's licenses on file in 2 states: Pennsylvania and Florida.
Specialties and state licenses
- Neurology, PennsylvaniaPrimary
- Student in an organized health care education/training program, Florida
Neurologists near Dr. Diaz
Counts of neurologists 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. Maria Virginia Diaz billed Medicare for 293 services in 2024
CMS data shows 293 Medicare services from Dr. Diaz across 5 procedure codes in 2024, for 118 Medicare patients. Medicare paid $35,788 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2512024: 29317%
Dr. Diaz compared with the Pennsylvania median for neurologists, 2024
- Dr. Diaz
- Pennsylvania median
- Medicare services
- 293vs 3105% below
- Medicare patients
- 118vs 19339% below
- Part D claims
- 30vs 28189% below
Medians across 876 neurologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Diaz'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Maria Virginia Diaz treated 118 Medicare patients in 2024, average age 71
CMS counts 118 Medicare patients who saw Dr. Diaz in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 64% are also on Medicaid. Their average risk score is 3.10, 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. Diaz's median patient age at 69, with 53% women.
Dr. Diaz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Diaz's Medicare patients by sex, 2024
- Women6253%
- Men5647%
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA70%
- Ischemic heart disease61%
- Diabetes60%
- Chronic kidney disease57%
- Arthritis52%
- Mood disorders50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maria Virginia Diaz wrote 30 Medicare Part D claims in 2019
In 2019, Dr. Diaz wrote 30 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $624 in total drug cost. In 2018, CMS named 11 claims across 1 drug.
Dr. Diaz's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 112019: 30173%
Drugs named by CMS: 2 in 2019, 1 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Maria Virginia Diaz takes part in Medicare
Dr. Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Maria Virginia Diaz received $624 in industry payments from 2017 to 2025
CMS Open Payments shows 17 general payments to Dr. Diaz from 9 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 90% of the total. Genentech, Inc. paid the most, $225.
General payments to Dr. Diaz by program year, 2017 to 2025
General payments to Dr. Diaz by kind, 2017 to 2025
- Food and beverage$56490%
- Gifts$6010%
Companies that paid Dr. Diaz the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Maria Virginia Diaz'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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. Maria Virginia Diaz
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. Maria Virginia Diaz's NPI number?
Dr. Maria Virginia Diaz's NPI number is 1356791693. It was assigned on June 17, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria Virginia Diaz?
Dr. Maria Virginia Diaz is a neurologist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Maria Virginia Diaz practice?
Dr. Diaz practices at 5501 Old York Road, Philadelphia, PA 19141. Dr. Diaz's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Diaz to 1 dialysis center.
What is Dr. Maria Virginia Diaz's office phone number?
The practice phone on file for Dr. Diaz is (215) 456-6090.
What is Dr. Maria Virginia Diaz's medical license number?
Dr. Diaz holds Pennsylvania license MD473227, one of the licenses on file in 2 states.
Which states has Dr. Maria Virginia Diaz been licensed in?
Dmand AI has state licenses on file for Dr. Diaz in Pennsylvania and Florida.
Which hospitals is Dr. Maria Virginia Diaz affiliated with?
Dr. Diaz practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania.
What medical group is Dr. Maria Virginia Diaz part of?
Dr. Diaz is linked to Einstein Gastroenterology Associates.
Does Dr. Maria Virginia Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 293 services in 2024, and Dr. Diaz accepts Medicare assignment.
How many Medicare patients does Dr. Maria Virginia Diaz see?
CMS counts 118 Medicare patients who saw Dr. Diaz in 2024, with an average age of 71.
Show 4 more questionsShow fewer questions
What services does Dr. Maria Virginia Diaz bill to Medicare?
In 2024, Dr. Diaz's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99233).
What drugs does Dr. Maria Virginia Diaz prescribe most?
In 2019 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Levetiracetam and Atorvastatin Calcium.
Has Dr. Maria Virginia Diaz received payments from drug or device companies?
CMS Open Payments shows $624 in general payments to Dr. Diaz from 9 companies from 2017 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Maria Virginia Diaz been practicing?
Dr. Diaz graduated from medical school in 2012, 14 years ago.
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