Dr. Diana C. Zackey, MD
- Medicare services, 2024
- 271
- Medicare patients, 2024
- 168
- Part D claims, 2024
- 1,551
- Industry payments
- $58
- Medical groups
- 2
- Practice address
- 3400 Spruce St, Philadelphia, PA 19104
- Practice phone
- Call (215) 762-0888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania
Find Dr. Zackey's professional email, personal email and mobile number
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Dr. Diana C. Zackey is an internist in Philadelphia, Pennsylvania
Dr. Zackey practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania.
Dr. Zackey's NPI, 1922528538, was assigned on June 24, 2017. Dr. Zackey holds Pennsylvania license MD471702.
- NPI
- 1922528538NPI Registry (opens in a new tab)
- NPI enumeration date
- June 24, 2017
- NPI status
- Active
- Practice phone
- (215) 762-0888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Diana C. Zackey practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania
Dr. Zackey's primary practice is Hospital of the University of Pennsylvania, at 3400 Spruce St, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 762-0888.
- Hospital of the University of Pennsylvania3400 Spruce St, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 762-0888
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Diana C. Zackey is affiliated with 1 site of care and 2 medical groups
Dr. Zackey's primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania. The medical group on file is 9th Street Internal Medicine. Dmand AI also links Dr. Zackey to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Diana C. Zackey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zackey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital of the University of Pennsylvania | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diana C. Zackey is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Zackey's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zackey is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Zackey
Counts of internists 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. Diana C. Zackey billed Medicare for 271 services in 2024
CMS data shows 271 Medicare services from Dr. Zackey across 8 procedure codes in 2024, for 168 Medicare patients. Medicare paid $14,682 for them. Every service was in an office.
Dr. Zackey's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3192024: 14056%
- Lab and pathology
- 2023: 02024: 91
- Imaging
- 2023: 02024: 28
- Surgery
- 2023: 02024: 12
- Tests and treatments
- 2023: 502024: 0100%
- Other services
- 2023: 2082024: 0100%
Dr. Zackey compared with the Pennsylvania median for internists, 2024
- Dr. Zackey
- Pennsylvania median
- Medicare services
- 271vs 41735% below
- Medicare patients
- 168vs 1859% below
- Part D claims
- 1,023vs 2244.6 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Zackey'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. Diana C. Zackey treated 168 Medicare patients in 2024, average age 74
CMS counts 168 Medicare patients who saw Dr. Zackey in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zackey's median patient age at 49, with 64% women.
Dr. Zackey's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zackey's Medicare patients by sex, 2024
- Women12071%
- Men4829%
Chronic conditions among Dr. Zackey's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis49%
- Anxiety33%
- Ischemic heart disease31%
- Mood disorders26%
- Osteoporosis26%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zackey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diana C. Zackey wrote 1,551 Medicare Part D claims in 2024
In 2024, Dr. Zackey wrote 1,551 Medicare Part D claims for 484 patients. 90% of them were for generic drugs. CMS names the drug for 1,023 of them, across 33 drugs with 11 or more claims each, at $39,023 in total drug cost. In 2023, CMS named 3,813 claims across 89 drugs.
Dr. Zackey's Part D claims by kind of drug, 2024
- Generic1,392 claims90%
- Brand-name147 claims9%
- Other12 claims1%
Dr. Zackey'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. Zackey's Part D claims, 2024
- Antibiotics4%60 of 1,551 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: 3,8132024: 1,02373%
Drugs named by CMS: 33 in 2024, 89 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
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Dr. Diana C. Zackey received $58 in industry payments in 2022
CMS Open Payments shows 3 general payments to Dr. Zackey from 2 drug and device companies in 2022. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $40.
Companies that paid Dr. Zackey the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Diana C. Zackey'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) |
| 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. Diana C. Zackey
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. Diana C. Zackey's NPI number?
Dr. Diana C. Zackey's NPI number is 1922528538. It was assigned on June 24, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Diana C. Zackey?
Dr. Diana C. Zackey is an internist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Diana C. Zackey practice?
Dr. Zackey practices at 3400 Spruce St, Philadelphia, PA 19104. Dr. Zackey's primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania. Dmand AI also links Dr. Zackey to 1 medical group.
What is Dr. Diana C. Zackey's office phone number?
The practice phone on file for Dr. Zackey is (215) 762-0888.
What is Dr. Diana C. Zackey's medical license number?
Dr. Zackey holds Pennsylvania license MD471702.
What medical group is Dr. Diana C. Zackey part of?
Dr. Zackey is linked to 9th Street Internal Medicine. Dmand AI links Dr. Zackey to 1 more medical group.
Does Dr. Diana C. Zackey accept Medicare?
Yes. CMS data shows Dr. Zackey billed Medicare for 271 services in 2024.
How many Medicare patients does Dr. Diana C. Zackey see?
CMS counts 168 Medicare patients who saw Dr. Zackey in 2024, with an average age of 74.
What services does Dr. Diana C. Zackey bill to Medicare?
In 2024, Dr. Zackey's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and lab and pathology test (87426).
What drugs does Dr. Diana C. Zackey prescribe most?
In 2024 Medicare Part D data, Dr. Zackey's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Omeprazole.
Has Dr. Diana C. Zackey received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Zackey from 2 companies from 2022 to 2022. The largest total came from Pfizer Inc.
How long has Dr. Diana C. Zackey been practicing?
Dr. Zackey graduated from medical school in 2017, 9 years ago.
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