Dr. Douglas Mathern, MD, PhD
- Medicare services, 2024
- 244
- Medicare patients, 2024
- 234
- Part D claims, 2024
- 110
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 2601 Ocean Parkway, Brooklyn, NY 11235
- Practice phone
- Call (718) 616-4834
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Mathern'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. Douglas Mathern is an emergency medicine physician in Brooklyn, New York
Dr. Mathern practices at NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital in Brooklyn, New York, part of NYC.
Dr. Mathern's NPI, 1669037891, was assigned on May 2, 2019. Dr. Mathern graduated from Icahn School Of Medicine At Mount Sinai in 2017. Dr. Mathern holds New York license 327703-01.
- NPI
- 1669037891NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042541088
- NPI enumeration date
- May 2, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 616-4834
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas Mathern practices at NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital in Brooklyn, New York
Dr. Mathern's primary practice is NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital, at 2601 Ocean Parkway, Brooklyn, NY 11235 in Kings County. The practice phone is (718) 616-4834.
- NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital2601 Ocean Parkway, Brooklyn, NY 11235 · Kings CountyPhone(718) 616-4834
Source: Dmand AI Affiliation Data
Dr. Douglas Mathern is affiliated with 2 sites of care and 3 medical groups
Dr. Mathern's primary practice is NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital in Brooklyn, New York, part of NYC. Dr. Mathern is also affiliated with Covenant Health Hobbs Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Mathern to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas Mathern's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mathern practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital | 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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Dr. Douglas Mathern is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Mathern's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Mathern's licenses on file in 2 states: New York and New Mexico.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
- New Mexico license
Emergency medicine physicians near Dr. Mathern
Counts of emergency medicine physicians 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. Douglas Mathern billed Medicare for 244 services in 2024
CMS data shows 244 Medicare services from Dr. Mathern across 4 procedure codes in 2024, for 234 Medicare patients. Medicare paid $29,157 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mathern's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 372024: 244559%
Dr. Mathern compared with the New York median for emergency medicine physicians, 2024
- Dr. Mathern
- New York median
- Medicare services
- 244vs 21911% above
- Medicare patients
- 234vs 2168% above
- Part D claims
- 42vs 2945% above
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Mathern's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Mathern treated 234 Medicare patients in 2024, average age 75
CMS counts 234 Medicare patients who saw Dr. Mathern in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 60% are also on Medicaid. Their average risk score is 2.41, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mathern's median patient age at 71, with 56% women.
Dr. Mathern's Medicare patients by age, 2024
Dr. Mathern's Medicare patients by sex, 2024
- Women12353%
- Men11147%
Chronic conditions among Dr. Mathern's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes56%
- Ischemic heart disease51%
- Mood disorders46%
- Heart failure44%
- Anxiety43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mathern's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas Mathern wrote 110 Medicare Part D claims in 2024
In 2024, Dr. Mathern wrote 110 Medicare Part D claims for 81 patients. 97% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $249 in total drug cost.
Dr. Mathern's Part D claims by kind of drug, 2024
- Generic107 claims97%
- Brand-name and other3 claims3%
Dr. Mathern's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Mathern's Part D claims, 2024
- Antibiotics29%32 of 110 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Douglas Mathern scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Mathern for performance year 2024, reported as part of a group. Dr. Mathern accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mathern's MIPS scores, performance year 2024
- 87of 100Final score
- 63.6of 100Quality
- 85of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Douglas Mathern graduated from Icahn School Of Medicine At Mount Sinai
Dr. Mathern graduated from Icahn School Of Medicine At Mount Sinai in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas Mathern'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 and Drug (CMS) (opens in a new tab)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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Douglas Mathern
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. Douglas Mathern's NPI number?
Dr. Douglas Mathern's NPI number is 1669037891. It was assigned on May 2, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Mathern?
Dr. Douglas Mathern is an emergency medicine physician in Brooklyn, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Douglas Mathern practice?
Dr. Mathern practices at 2601 Ocean Parkway, Brooklyn, NY 11235. Dr. Mathern's primary practice is NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital in Brooklyn, New York, part of NYC. Dmand AI also links Dr. Mathern to 2 medical groups.
What is Dr. Douglas Mathern's office phone number?
The practice phone on file for Dr. Mathern is (718) 616-4834.
What is Dr. Douglas Mathern's medical license number?
Dr. Mathern holds New York license 327703-01, one of the licenses on file in 2 states.
Which states has Dr. Douglas Mathern been licensed in?
Dmand AI has state licenses on file for Dr. Mathern in New York and New Mexico.
Which hospitals is Dr. Douglas Mathern affiliated with?
Dr. Mathern practices at NYC Health + Hospitals/South Brooklyn Health, Ruth Bader Ginsburg Hospital in Brooklyn, New York. Dr. Mathern is also affiliated with Covenant Health Hobbs Hospital.
What medical group is Dr. Douglas Mathern part of?
Dr. Mathern is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Mathern to 2 more medical groups.
Does Dr. Douglas Mathern accept Medicare?
Yes. CMS data shows Dr. Mathern billed Medicare for 244 services in 2024, and Dr. Mathern accepts Medicare assignment.
What is Dr. Douglas Mathern's MIPS score?
Dr. Mathern's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Douglas Mathern see?
CMS counts 234 Medicare patients who saw Dr. Mathern in 2024, with an average age of 75.
What services does Dr. Douglas Mathern bill to Medicare?
In 2024, Dr. Mathern's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. Douglas Mathern go to medical school?
Dr. Mathern graduated from Icahn School Of Medicine At Mount Sinai in 2017.
What drugs does Dr. Douglas Mathern prescribe most?
In 2024 Medicare Part D data, Dr. Mathern's most prescribed drugs by claims were Cephalexin, Ondansetron ODT and Ibuprofen.
How long has Dr. Douglas Mathern been practicing?
Dr. Mathern graduated from medical school in 2017, 9 years ago.
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