Mary Catherine Drennan, LCSWC
- Affiliated sites
- 2
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 3510 Brenbrook Dr, Randallstown, MD 21133
- Practice phone
- Call (410) 837-2050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chase Brexton Health Care
Multi-specialty group site · Randallstown, Maryland
Find Mary Drennan'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.
Mary Catherine Drennan is a clinical social worker in Randallstown, Maryland
Mary Drennan practices at Chase Brexton Health Care in Randallstown, Maryland.
Mary Drennan's NPI, 1174756761, was assigned on August 28, 2009. Mary Drennan holds Maryland license 09078.
- NPI
- 1174756761NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840475679
- NPI enumeration date
- August 28, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 837-2050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Catherine Drennan practices at Chase Brexton Health Care in Randallstown, Maryland
Mary Drennan's primary practice is Chase Brexton Health Care, at 3510 Brenbrook Dr, Randallstown, MD 21133. The practice phone is (410) 837-2050.
- Chase Brexton Health Care3510 Brenbrook Dr, Randallstown, MD 21133Phone(410) 837-2050
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Catherine Drennan is affiliated with 2 sites of care and 3 medical groups
Mary Drennan's primary practice is Chase Brexton Health Care in Randallstown, Maryland. The medical group on file is Chase Brexton Health Care. Dmand AI also links Mary Drennan to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Mary Catherine Drennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Drennan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chase Brexton Health Care | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Catherine Drennan is one of 2,537 clinical social workers in Maryland
Social worker is Mary Drennan's primary specialty in the NPI Registry, under taxonomy code 1041C0700X. The record also lists clinical. Mary Drennan is licensed in Maryland.
Specialties and state licenses
- Clinical social worker, MarylandPrimary
Clinical social workers near Mary Drennan
Counts of clinical social workers 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
Mary Catherine Drennan's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Mary Drennan's median patient age at 73, with 70% women.
Mary Drennan'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
- Women70%
- Men20%
Source: Dmand AI Patient Panel Data
Mary Catherine Drennan offers telehealth to Medicare patients
Mary Drennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Mary Drennan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Mary Catherine Drennan'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Mary Catherine Drennan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Catherine Drennan's NPI number?
Mary Catherine Drennan's NPI number is 1174756761. It was assigned on August 28, 2009, and it is active in the NPI Registry.
What does Mary Catherine Drennan specialize in?
Mary Catherine Drennan is a clinical social worker in Randallstown, Maryland. The primary specialty in the NPI Registry is Clinical Social Worker (taxonomy code 1041C0700X).
Where does Mary Catherine Drennan practice?
Mary Drennan practices at 3510 Brenbrook Dr, Randallstown, MD 21133. Mary Drennan's primary practice is Chase Brexton Health Care in Randallstown, Maryland. Dmand AI also links Mary Drennan to 2 medical groups and 1 group practice or clinic.
What is Mary Catherine Drennan's office phone number?
The practice phone on file for Mary Drennan is (410) 837-2050.
What is Mary Catherine Drennan's medical license number?
Mary Drennan holds Maryland license 09078.
What medical group is Mary Catherine Drennan part of?
Mary Drennan is linked to Chase Brexton Health Care. Dmand AI links Mary Drennan to 2 more medical groups.
Does Mary Catherine Drennan accept Medicare?
Yes. CMS lists Mary Drennan as accepting Medicare assignment.
Does Mary Catherine Drennan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Mary Drennan as offering telehealth services.
How long has Mary Catherine Drennan been practicing?
Mary Drennan graduated from medical school in 1980, 46 years ago.
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