Calla Zelazny, PA-C
- Medicare patients, 2024
- 386
- Part D claims, 2024
- 153
- Hospital affiliations
- 3
- Industry payments
- $73
- Medical groups
- 2
- Practice address
- 7474 Greenway Center Dr, Greenbelt, MD 20770
- Practice phone
- Call (301) 441-8807
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Center for Vascular Medicine
Greenbelt, Maryland
Find Calla Zelazny's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Calla Zelazny is a physician assistant in Greenbelt, Maryland
Calla Zelazny practices at Center for Vascular Medicine in Greenbelt, Maryland.
Calla Zelazny's NPI, 1962887901, was assigned on July 20, 2015. Calla Zelazny holds Maryland license C05848.
- NPI
- 1962887901NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971811514
- NPI enumeration date
- July 20, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (301) 441-8807
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Calla Zelazny practices at Center for Vascular Medicine in Greenbelt, Maryland
Calla Zelazny's primary practice is Center for Vascular Medicine, at 7474 Greenway Center Dr, Greenbelt, MD 20770 in Prince Georges County. The practice phone is (301) 441-8807.
- Center for Vascular Medicine7474 Greenway Center Dr, Greenbelt, MD 20770 · Prince Georges CountyPhone(301) 441-8807
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Calla Zelazny is affiliated with 6 sites of care and 2 medical groups
Calla Zelazny's primary practice is Center for Vascular Medicine in Greenbelt, Maryland. Calla Zelazny is also affiliated with TidalHealth Peninsula Regional. The medical group on file is Center for Vascular Medicine. Dmand AI also links Calla Zelazny to 2 more hospitals, 2 group practices and clinics and 1 medical group, each 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 Calla Zelazny's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Calla Zelazny practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Center for Vascular Medicine | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Calla Zelazny is one of 2,452 physician assistants in Maryland
Physician assistant is Calla Zelazny's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Calla Zelazny is licensed in Maryland.
Specialties and state licenses
- Physician assistant, MarylandPrimary
Physician assistants near Calla Zelazny
Counts of physician assistants 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
Calla Zelazny treated 386 Medicare patients in 2024, average age 75
CMS counts 386 Medicare patients who saw Calla Zelazny in 2024. The largest group is 65 to 74, with 159 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Calla Zelazny's median patient age at 73, with 58% women.
Calla Zelazny's Medicare patients by age, 2024
Calla Zelazny's Medicare patients by sex, 2024
- Women25165%
- Men13535%
Chronic conditions among Calla Zelazny's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Diabetes48%
- Chronic kidney disease31%
- Ischemic heart disease31%
- Mood disorders23%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Calla Zelazny's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Calla Zelazny wrote 153 Medicare Part D claims in 2024
In 2024, Calla Zelazny wrote 153 Medicare Part D claims for 52 patients. 71% of them were for generic drugs.
Calla Zelazny's Part D claims by kind of drug, 2024
- Generic109 claims71%
- Brand-name44 claims29%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Calla Zelazny offers telehealth to Medicare patients
Calla Zelazny accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Calla Zelazny as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Calla Zelazny received $73 in industry payments in 2025
CMS Open Payments shows 2 general payments to Calla Zelazny from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $49.
Companies that paid Calla Zelazny the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Calla Zelazny'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 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 (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 Calla Zelazny
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Calla Zelazny's NPI number?
Calla Zelazny's NPI number is 1962887901. It was assigned on July 20, 2015, and it is active in the NPI Registry.
What does Calla Zelazny specialize in?
Calla Zelazny is a physician assistant in Greenbelt, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Calla Zelazny practice?
Calla Zelazny practices at 7474 Greenway Center Dr, Greenbelt, MD 20770. Calla Zelazny's primary practice is Center for Vascular Medicine in Greenbelt, Maryland. Dmand AI also links Calla Zelazny to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Calla Zelazny's office phone number?
The practice phone on file for Calla Zelazny is (301) 441-8807.
What is Calla Zelazny's medical license number?
Calla Zelazny holds Maryland license C05848.
Which hospitals is Calla Zelazny affiliated with?
Calla Zelazny is affiliated with TidalHealth Peninsula Regional. Dmand AI links Calla Zelazny to 2 more hospitals.
What medical group is Calla Zelazny part of?
Calla Zelazny is linked to Center for Vascular Medicine. Dmand AI links Calla Zelazny to 1 more medical group.
Does Calla Zelazny accept Medicare?
Yes. CMS lists Calla Zelazny as accepting Medicare assignment.
Does Calla Zelazny offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Calla Zelazny as offering telehealth services.
How many Medicare patients does Calla Zelazny see?
CMS counts 386 Medicare patients who saw Calla Zelazny in 2024, with an average age of 75.
Has Calla Zelazny received payments from drug or device companies?
CMS Open Payments shows $73 in general payments to Calla Zelazny from 2 companies from 2025 to 2025. The largest total came from C. R. Bard, Inc. & Subsidiaries.
How long has Calla Zelazny been practicing?
Calla Zelazny graduated from medical school in 2015, 11 years ago.
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