Dr. David A. Chang, MD
- Medicare services, 2018
- 40
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 24
- Industry payments
- $530
- Affiliated sites
- 1
- Practice address
- 1212 York Road, Lutherville, MD 21093
- Practice phone
- Call (443) 394-0520
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Femi-Care Surgery Center
Surgery Center - Medicare-Certified · Lutherville, Maryland
Find Dr. Chang'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. David A. Chang is an OB-GYN in Lutherville Timonium, Maryland
Dr. Chang practices at Femi-Care Surgery Center in Lutherville, Maryland.
Dr. Chang's NPI, 1790831410, was assigned on January 26, 2007. Dr. Chang holds Maryland license P19296.
- NPI
- 1790831410NPI Registry (opens in a new tab)
- NPI enumeration date
- January 26, 2007
- NPI status
- Active
- Practice phone
- (443) 394-0520
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David A. Chang practices at Femi-Care Surgery Center in Lutherville, Maryland
Dr. Chang's primary practice is Femi-Care Surgery Center, at 1212 York Road, Lutherville, MD 21093. The practice phone is (443) 394-0520.
- Femi-Care Surgery Center1212 York Road, Lutherville, MD 21093Phone(443) 394-0520
Source: Dmand AI Affiliation Data
Dr. David A. Chang is affiliated with 1 site of care
Dr. Chang's primary practice is Femi-Care Surgery Center in Lutherville, Maryland.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David A. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Femi-Care Surgery Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David A. Chang is one of 945 OB-GYNs in Maryland
Obstetrics and gynecology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Chang is licensed in Maryland.
Specialties and state licenses
- Obstetrics and gynecology, MarylandPrimary
OB-GYNs near Dr. Chang
Counts of OB-GYNs 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. David A. Chang billed Medicare for 40 services in 2018
CMS data shows 40 Medicare services from Dr. Chang across 2 procedure codes in 2018, for 12 Medicare patients. Medicare paid $1,599 for them. Every service was in an office.
Dr. Chang's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Imaging
- 2017: 132018: 2269%
- Lab and pathology
- 2017: 272018: 1833%
Dr. Chang compared with the Maryland median for OB-GYNs, 2018
- Dr. Chang
- Maryland median
- Medicare services
- 40vs 6740% below
- Medicare patients
- 12vs 5679% below
Medians across 788 OB-GYNs in Maryland with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other OB-GYNs in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David A. Chang treated 12 Medicare patients in 2024, average age 34
CMS counts 12 Medicare patients who saw Dr. Chang in 2024. The largest group is under 65, with 12 patients. 100% are also on Medicaid. Their average risk score is 0.52, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 31, with 97% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women97%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David A. Chang wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 24 Medicare Part D claims. 92% of them were for generic drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic22 claims92%
- Brand-name and other2 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. David A. Chang received $530 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Chang from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $125.
General payments to Dr. Chang by program year, 2016 to 2025
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David A. Chang'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 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 (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. David A. Chang
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. David A. Chang's NPI number?
Dr. David A. Chang's NPI number is 1790831410. It was assigned on January 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Chang?
Dr. David A. Chang is an OB-GYN in Lutherville Timonium, Maryland. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. David A. Chang practice?
Dr. Chang practices at 1212 York Road, Lutherville, MD 21093. Dr. Chang's primary practice is Femi-Care Surgery Center in Lutherville, Maryland.
What is Dr. David A. Chang's office phone number?
The practice phone on file for Dr. Chang is (443) 394-0520.
What is Dr. David A. Chang's medical license number?
Dr. Chang holds Maryland license P19296.
Does Dr. David A. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 40 services in 2018.
How many Medicare patients does Dr. David A. Chang see?
CMS counts 12 Medicare patients who saw Dr. Chang in 2024, with an average age of 34.
What services does Dr. David A. Chang bill to Medicare?
In 2018, Dr. Chang's most billed Medicare services were ultrasound (76817) and lab and pathology test (86901).
Has Dr. David A. Chang received payments from drug or device companies?
CMS Open Payments shows $530 in general payments to Dr. Chang from 9 companies from 2016 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has Dr. David A. Chang been practicing?
Dr. Chang graduated from medical school in 2003, 23 years ago.
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