Dr. Megan Malchak Obrien, MD
- Hospital affiliations
- 1
- Industry payments
- $84
- Medical group
- 1
- Insurance carriers
- 16
- State licenses
- 2
- Practice address
- 333 N Santa Rosa St, San Antonio, TX 78207
- Practice phone
- Call (210) 704-3342
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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.
Dr. Megan Malchak Obrien is a pediatrician in San Antonio, Texas
Dr. Obrien practices at CHRISTUS Children's in San Antonio, Texas, part of CHRISTUS Health.
Dr. Obrien's NPI, 1033125588, was assigned on August 1, 2006. Dr. Obrien graduated from University of Maryland School of Medicine - Baltimore in 1998. Dr. Obrien's Texas license number on file is M4403.
- NPI
- 1033125588NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779585856
- NPI enumeration date
- August 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (210) 704-3342
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Megan Malchak Obrien practices at CHRISTUS Children's in San Antonio, Texas
Dr. Obrien's primary practice is CHRISTUS Children's, at 333 N Santa Rosa St, San Antonio, TX 78207 in Bexar County. The practice phone is (210) 704-3342.
- CHRISTUS Children's333 N Santa Rosa St, San Antonio, TX 78207 · Bexar CountyPhone(210) 704-3342
Source: Dmand AI Affiliation Data
Dr. Megan Malchak Obrien is affiliated with 1 site of care and 1 medical group
Dr. Obrien's primary practice is CHRISTUS Children's in San Antonio, Texas, part of CHRISTUS Health. The medical group on file is Baylor College of Medicine.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Megan Malchak Obrien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Obrien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHRISTUS Children's | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across CHRISTUS Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Megan Malchak Obrien is one of 4,833 pediatricians in Texas
Pediatrics is Dr. Obrien's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Obrien is board certified in pediatrics by the American Board of Pediatrics. Dmand AI has Dr. Obrien's licenses on file in 2 states: Texas and North Carolina.
Specialties and state licenses
- Pediatrics, TexasPrimary
- North Carolina license
Pediatricians near Dr. Obrien
Counts of pediatricians 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. Megan Malchak Obrien's patients have a median age of 7
Across all payers, Dmand AI patient panel data puts Dr. Obrien's median patient age at 7, with 47% women.
Dr. 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 7
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
How Dr. Megan Malchak Obrien takes part in Medicare
Dr. Obrien 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)
Dr. Megan Malchak Obrien received $84 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Obrien from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $84.
Companies that paid Dr. Obrien the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Megan Malchak Obrien graduated from University of Maryland School of Medicine - Baltimore
Dr. Obrien graduated from University of Maryland School of Medicine - Baltimore in 1998.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Megan Malchak Obrien accepts plans from 16 insurance carriers
Dr. Obrien is in network with 16 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Alliant Health Plans
- HCSC
- Aspirus Health Plan
- Baylor Scott and White
- +8 more carriersWith a free account
Plan types Dr. Obrien accepts, by number of carriers
- HMO10
- PPO8
- POS5
- EPO4
- Medicare3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Megan Malchak 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Megan Malchak Obrien
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. Megan Malchak Obrien's NPI number?
Dr. Megan Malchak Obrien's NPI number is 1033125588. It was assigned on August 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Megan Malchak Obrien?
Dr. Megan Malchak Obrien is a pediatrician in San Antonio, Texas. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Megan Malchak Obrien practice?
Dr. Obrien practices at 333 N Santa Rosa St, San Antonio, TX 78207. Dr. Obrien's primary practice is CHRISTUS Children's in San Antonio, Texas, part of CHRISTUS Health.
What is Dr. Megan Malchak Obrien's office phone number?
The practice phone on file for Dr. Obrien is (210) 704-3342.
What is Dr. Megan Malchak Obrien's medical license number?
Dr. Obrien's Texas license number on file is M4403, one of the licenses on file in 2 states.
Which states has Dr. Megan Malchak Obrien been licensed in?
Dmand AI has state licenses on file for Dr. Obrien in Texas (2006 to 2025) and North Carolina (2005 to 2007).
Which hospitals is Dr. Megan Malchak Obrien affiliated with?
Dr. Obrien practices at CHRISTUS Children's in San Antonio, Texas.
What medical group is Dr. Megan Malchak Obrien part of?
Dr. Obrien is linked to Baylor College of Medicine.
Does Dr. Megan Malchak Obrien accept Medicare?
Yes. CMS lists Dr. Obrien as accepting Medicare assignment.
Is Dr. Megan Malchak Obrien board certified?
Yes. Dr. Obrien is board certified in pediatrics by the American Board of Pediatrics.
Show 4 more questionsShow fewer questions
Where did Dr. Megan Malchak Obrien go to medical school?
Dr. Obrien graduated from University of Maryland School of Medicine - Baltimore in 1998.
Has Dr. Megan Malchak Obrien received payments from drug or device companies?
CMS Open Payments shows $84 in general payments to Dr. Obrien from 1 company from 2024 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Megan Malchak Obrien been practicing?
Dr. Obrien graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Megan Malchak Obrien accept?
Dr. Obrien is in network with 16 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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