Dr. Aaron Michael Gerstenmaier, MD
- Medicare services, 2024
- 39
- Medicare patients, 2024
- 45
- Part D claims, 2024
- 1,867
- Hospital affiliations
- 1
- Industry payments
- $24,656
- Practice address
- 2155 Champlian Street Nw, Washington, DC 20009
- Practice phone
- Call (202) 232-9022
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marie Reed Health Center
FQHC - Main Site · Washington, District of Columbia
Find Dr. Gerstenmaier'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. Aaron Michael Gerstenmaier is a family medicine physician in Washington, District of Columbia
Dr. Gerstenmaier practices at Marie Reed Health Center in Washington, District of Columbia.
Dr. Gerstenmaier's NPI, 1851602767, was assigned on June 24, 2010. Dr. Gerstenmaier graduated from Ohio State University College of Medicine in 2010. Dr. Gerstenmaier holds District of Columbia license MD041031.
- NPI
- 1851602767NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315172079
- NPI enumeration date
- June 24, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 232-9022
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron Michael Gerstenmaier practices at Marie Reed Health Center in Washington, District of Columbia
Dr. Gerstenmaier's primary practice is Marie Reed Health Center, at 2155 Champlian Street Nw, Washington, DC 20009 in District Of Columbia County. The practice phone is (202) 232-9022.
- Marie Reed Health Center2155 Champlian Street Nw, Washington, DC 20009 · District Of Columbia CountyPhone(202) 232-9022
Source: Dmand AI Affiliation Data
Dr. Aaron Michael Gerstenmaier is affiliated with 3 sites of care and 3 medical groups
Dr. Gerstenmaier's primary practice is Marie Reed Health Center in Washington, District of Columbia. Dr. Gerstenmaier is also affiliated with The George Washington University Hospital. The medical group on file is MedStar Health: Urgent Care in Wheaton. Dmand AI also links Dr. Gerstenmaier to 2 more medical groups and 1 group practice or clinic, each named with a free account. Dr. Gerstenmaier's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Aaron Michael Gerstenmaier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerstenmaier practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marie Reed Health Center | Available with a free account |
| +2 more sites and 2 medical groups | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron Michael Gerstenmaier is one of 241 family medicine physicians in District of Columbia
Family medicine is Dr. Gerstenmaier's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Gerstenmaier is licensed in District of Columbia.
Specialties and state licenses
- Family medicine, District of ColumbiaPrimary
Family medicine physicians near Dr. Gerstenmaier
Counts of family 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. Aaron Michael Gerstenmaier billed Medicare for 39 services in 2024
CMS data shows 39 Medicare services from Dr. Gerstenmaier across 1 procedure code in 2024, for 45 Medicare patients. Medicare paid $371 for them. Every service was in an office.
Dr. Gerstenmaier's Medicare services by type, 2019 to 2024
- 2019
- 2024
- Lab and pathology
- 2019: 272024: 3944%
Dr. Gerstenmaier compared with the District of Columbia median for family medicine physicians, 2024
- Dr. Gerstenmaier
- District of Columbia median
- Medicare services
- 39vs 8554% below
- Medicare patients
- 45vs 43Close to median
- Part D claims
- 1,414vs 3004.7 times
Medians across 222 family medicine physicians in District of Columbia with Dmand AI profiles that report each measure.
Dr. Gerstenmaier'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.
Need commercial claims for Dr. Gerstenmaier?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gerstenmaier and other family medicine physicians in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron Michael Gerstenmaier treated 45 Medicare patients in 2024, average age 69
CMS counts 45 Medicare patients who saw Dr. Gerstenmaier in 2024. The largest group is 65 to 74, with 29 patients. 60% of them have high blood pressure, and 51% have high cholesterol. 47% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gerstenmaier's median patient age at 36, with 59% women.
Dr. Gerstenmaier's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gerstenmaier's Medicare patients by sex, 2024
- Women3271%
- Men1329%
Chronic conditions among Dr. Gerstenmaier's Medicare patients, 2024
- High blood pressure60%
- High cholesterol51%
- Arthritis38%
- Diabetes36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gerstenmaier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron Michael Gerstenmaier wrote 1,867 Medicare Part D claims in 2024
In 2024, Dr. Gerstenmaier wrote 1,867 Medicare Part D claims for 108 patients. 72% of them were for generic drugs. CMS names the drug for 1,414 of them, across 50 drugs with 11 or more claims each, at $923,963 in total drug cost. In 2023, CMS named 1,333 claims across 55 drugs.
Dr. Gerstenmaier's Part D claims by kind of drug, 2024
- Generic1,338 claims72%
- Brand-name498 claims27%
- Other31 claims2%
Dr. Gerstenmaier'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. Gerstenmaier's Part D claims, 2024
- Opioids1%24 of 1,867 claims
- Antibiotics2%29 of 1,867 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,3332024: 1,4146%
Drugs named by CMS: 50 in 2024, 55 in 2023.
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. Aaron Michael Gerstenmaier offers telehealth to Medicare patients
Dr. Gerstenmaier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gerstenmaier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Aaron Michael Gerstenmaier received $24,656 in industry payments from 2022 to 2025
CMS Open Payments shows 34 general payments to Dr. Gerstenmaier from 1 drug or device company from 2022 to 2025. Speaker and faculty fees make up the largest share, 84% of the total. ViiV Healthcare Company paid the most, $24,656.
General payments to Dr. Gerstenmaier by program year, 2022 to 2025
General payments to Dr. Gerstenmaier by kind, 2022 to 2025
- Speaker and faculty fees$20,80084%
- Travel and lodging$2,47310%
- Food and beverage$1,3846%
Companies that paid Dr. Gerstenmaier the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron Michael Gerstenmaier graduated from Ohio State University College of Medicine
Dr. Gerstenmaier graduated from Ohio State University College of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Aaron Michael Gerstenmaier'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) |
| Industry payments | Open Payments (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. Aaron Michael Gerstenmaier
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. Aaron Michael Gerstenmaier's NPI number?
Dr. Aaron Michael Gerstenmaier's NPI number is 1851602767. It was assigned on June 24, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron Michael Gerstenmaier?
Dr. Aaron Michael Gerstenmaier is a family medicine physician in Washington, District of Columbia. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Aaron Michael Gerstenmaier practice?
Dr. Gerstenmaier practices at 2155 Champlian Street Nw, Washington, DC 20009. Dr. Gerstenmaier's primary practice is Marie Reed Health Center in Washington, District of Columbia. Dmand AI also links Dr. Gerstenmaier to 2 medical groups and 1 group practice or clinic.
What is Dr. Aaron Michael Gerstenmaier's office phone number?
The practice phone on file for Dr. Gerstenmaier is (202) 232-9022.
What is Dr. Aaron Michael Gerstenmaier's medical license number?
Dr. Gerstenmaier holds District of Columbia license MD041031.
Which hospitals is Dr. Aaron Michael Gerstenmaier affiliated with?
Dr. Gerstenmaier is affiliated with The George Washington University Hospital.
What medical group is Dr. Aaron Michael Gerstenmaier part of?
Dr. Gerstenmaier is linked to MedStar Health: Urgent Care in Wheaton. Dmand AI links Dr. Gerstenmaier to 2 more medical groups.
Does Dr. Aaron Michael Gerstenmaier accept Medicare?
Yes. CMS data shows Dr. Gerstenmaier billed Medicare for 39 services in 2024, and Dr. Gerstenmaier accepts Medicare assignment.
Does Dr. Aaron Michael Gerstenmaier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gerstenmaier as offering telehealth services.
How many Medicare patients does Dr. Aaron Michael Gerstenmaier see?
CMS counts 45 Medicare patients who saw Dr. Gerstenmaier in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Dr. Aaron Michael Gerstenmaier bill to Medicare?
In 2024, Dr. Gerstenmaier's most billed Medicare services were lab and pathology test (83036).
Where did Dr. Aaron Michael Gerstenmaier go to medical school?
Dr. Gerstenmaier graduated from Ohio State University College of Medicine in 2010.
What drugs does Dr. Aaron Michael Gerstenmaier prescribe most?
In 2024 Medicare Part D data, Dr. Gerstenmaier's most prescribed drugs by claims were Atorvastatin Calcium, Biktarvy and Gabapentin.
Has Dr. Aaron Michael Gerstenmaier received payments from drug or device companies?
CMS Open Payments shows $24,656 in general payments to Dr. Gerstenmaier from 1 company from 2022 to 2025. The largest total came from ViiV Healthcare Company.
How long has Dr. Aaron Michael Gerstenmaier been practicing?
Dr. Gerstenmaier graduated from medical school in 2010, 16 years ago.
Selling to family medicine practices?
See family medicine physicians in District of Columbia by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card