Cynthia H. Obrien, CRNP
- Part D claims, 2024
- 538
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1221 Mercantile Lane, Largo, MD 20774
- Practice phone
- Call (301) 300-8733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ambulatory Surgery Center at Largo Medical Center
Surgery Center - Medicare-Certified · Largo, Maryland
Find Cynthia Obrien'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.
Cynthia H. Obrien is a nurse practitioner in Rockville, Maryland
Cynthia Obrien practices at Ambulatory Surgery Center at Largo Medical Center in Largo, Maryland.
Cynthia Obrien's NPI, 1912075359, was assigned on December 2, 2006. Cynthia Obrien holds Maryland license R093367.
- NPI
- 1912075359NPI Registry (opens in a new tab)
- NPI enumeration date
- December 2, 2006
- NPI status
- Active
- Practice phone
- (301) 300-8733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Cynthia H. Obrien practices in Largo and Rockville
Cynthia Obrien's primary practice is Ambulatory Surgery Center at Largo Medical Center, at 1221 Mercantile Lane, Largo, MD 20774. The practice phone is (301) 300-8733. The NPI Registry lists Cynthia Obrien's practice address as 1396 Piccard Dr, Rockville, MD 20850.
- Ambulatory Surgery Center at Largo Medical CenterPrimary1221 Mercantile Lane, Largo, MD 20774Phone(301) 300-8733
- NPI Registry address1396 Piccard Dr, Rockville, MD 20850 · Montgomery County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Cynthia H. Obrien is affiliated with 1 site of care and 1 medical group
Cynthia Obrien's primary practice is Ambulatory Surgery Center at Largo Medical Center in Largo, Maryland. The medical group on file is Mid-Atlantic Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Cynthia H. Obrien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cynthia Obrien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ambulatory Surgery Center at Largo Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Cynthia H. Obrien is one of 1,032 nurse practitioners in Maryland
Nurse practitioner is Cynthia Obrien's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Cynthia Obrien is licensed in Maryland.
Specialties and state licenses
- Nurse practitioner, MarylandPrimary
Nurse practitioners near Cynthia Obrien
Counts of nurse practitioners 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
Cynthia H. Obrien's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Cynthia Obrien's median patient age at 61, with 54% women.
Cynthia Obrien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Cynthia H. Obrien wrote 538 Medicare Part D claims in 2024
In 2024, Cynthia Obrien wrote 538 Medicare Part D claims for 137 patients. 27% of them were for generic drugs.
Cynthia Obrien's Part D claims by kind of drug, 2024
- Generic143 claims27%
- Brand-name280 claims52%
- Other115 claims21%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Sources for Cynthia H. Obrien'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Cynthia H. Obrien
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What is Cynthia H. Obrien's NPI number?
Cynthia H. Obrien's NPI number is 1912075359. It was assigned on December 2, 2006, and it is active in the NPI Registry.
What does Cynthia H. Obrien specialize in?
Cynthia H. Obrien is a nurse practitioner in Rockville, Maryland. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Cynthia H. Obrien practice?
Cynthia Obrien practices at 1221 Mercantile Lane, Largo, MD 20774. Cynthia Obrien also practices at 1396 Piccard Dr, Rockville, MD 20850. Cynthia Obrien's primary practice is Ambulatory Surgery Center at Largo Medical Center in Largo, Maryland.
What is Cynthia H. Obrien's office phone number?
The practice phone on file for Cynthia Obrien is (301) 300-8733.
What is Cynthia H. Obrien's medical license number?
Cynthia Obrien holds Maryland license R093367.
What medical group is Cynthia H. Obrien part of?
Cynthia Obrien is linked to Mid-Atlantic Permanente Medical Group.
How long has Cynthia H. Obrien been practicing?
Cynthia Obrien graduated from medical school in 1992, 34 years ago.
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