Dr. Adam Klein, DO
- Medicare services, 2024
- 498
- Medicare patients, 2026
- 216
- Part D claims, 2026
- 313
- MIPS score, 2026
- 94
- Hospital affiliations
- 3
- Practice address
- 110 Irving Street NW, Washington, DC 20010
- Practice phone
- Call (202) 877-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Klein'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. Adam Klein is an infectious disease specialist in Washington, District of Columbia
Dr. Klein practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Dr. Klein's NPI, 1245686641, was assigned on May 4, 2016. Dr. Klein graduated from Touro College of Osteopathic Medicine - New York in 2016. Dr. Klein holds New Jersey license 25MB11105300.
- NPI
- 1245686641NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274829643
- NPI enumeration date
- May 4, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 877-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Adam Klein practices at MedStar Washington Hospital Center in Washington, District of Columbia
Dr. Klein's primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.
- MedStar Washington Hospital Center110 Irving Street NW, Washington, DC 20010 · The District CountyPhone(202) 877-7000
Source: Dmand AI Affiliation Data
Dr. Adam Klein is affiliated with 3 sites of care and 3 medical groups
Dr. Klein's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dr. Klein is also affiliated with Sibley Memorial Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Klein to 1 more hospital and 2 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. Adam Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Washington Hospital 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 MedStar Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Adam Klein is one of 84 infectious disease specialists in District of Columbia
Infectious disease is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Klein is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Klein's licenses on file in 2 states: New Jersey and Texas.
Specialties and state licenses
- Infectious disease, New JerseyPrimary
- Internal medicine, Texas
Clinical focus
Dmand AI lists hiv/aids, joint or bone infection and UTI among the conditions Dr. Klein treats.
Infectious disease specialists near Dr. Klein
Counts of infectious disease specialists 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. Adam Klein billed Medicare for 498 services in 2024
CMS data shows 498 Medicare services from Dr. Klein across 6 procedure codes in 2024, for 216 Medicare patients. Medicare paid $47,226 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Klein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5422024: 46414%
- Other services
- 2023: 02024: 34
Dr. Klein compared with the District of Columbia median for infectious disease specialists, 2024
- Dr. Klein
- District of Columbia median
- Medicare services
- 498vs 41021% above
- Medicare patients
- 216vs 19014% above
- Part D claims
- 188vs 17011% above
Medians across 58 infectious disease specialists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Klein'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. Klein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klein and other infectious disease specialists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Adam Klein treated 216 Medicare patients in 2026, average age 68
CMS counts 216 Medicare patients who saw Dr. Klein in 2026. The largest group is 65 to 74, with 93 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 3.71, 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. Klein's median patient age at 54, with 38% women.
Dr. Klein's Medicare patients by age, 2026
Dr. Klein's Medicare patients by sex, 2026
- Women10950%
- Men10750%
Chronic conditions among Dr. Klein's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease66%
- Diabetes63%
- Arthritis62%
- Heart failure60%
- Ischemic heart disease60%
- Mood disorders48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women38%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Adam Klein wrote 313 Medicare Part D claims in 2026
In 2026, Dr. Klein wrote 313 Medicare Part D claims for 63 patients. 40% of them were for generic drugs. CMS names the drug for 188 of them, across 7 drugs with 11 or more claims each, at $521,593 in total drug cost. In 2023, CMS named 55 claims across 2 drugs.
Dr. Klein's Part D claims by kind of drug, 2026
- Generic126 claims40%
- Brand-name187 claims60%
Dr. Klein'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. Klein's Part D claims, 2026
- Antibiotics16%50 of 313 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: 552024: 188242%
Drugs named by CMS: 7 in 2024, 2 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), 2026 data
Dr. Adam Klein scored 94 out of 100 in Medicare's MIPS program for 2026
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Klein for performance year 2026, reported as part of a group. Dr. Klein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Klein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Klein's MIPS scores, performance year 2026
- 94of 100Final score
- 80.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 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), 2026 data
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. Adam Klein received $483 in industry payments from 2016 to 2019
CMS Open Payments shows 33 general payments to Dr. Klein from 10 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $123.
General payments to Dr. Klein by program year, 2016 to 2019
Companies that paid Dr. Klein the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Adam Klein graduated from Touro College of Osteopathic Medicine - New York
Dr. Klein graduated from Touro College of Osteopathic Medicine - New York in 2016. Dr. Klein is a member of ACP and IDSA.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
- Board certified in 2019 - 2027
- Board certified in 2023 - 2026
- Board certified in 2021 - 2023
- Board certified in 2020 - 2021
Source: Dmand AI Professional Profile Data
Dr. Adam Klein accepts plans from 17 insurance carriers
Dr. Klein is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Highmark. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Highmark
- United Healthcare
- CareFirst BlueCross BlueShield
- Cigna
- Elevance
- HCSC
- +9 more carriersWith a free account
Plan types Dr. Klein accepts, by number of carriers
- PPO12
- HMO10
- Medicare10
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Adam Klein'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) |
| 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. Adam Klein
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. Adam Klein's NPI number?
Dr. Adam Klein's NPI number is 1245686641. It was assigned on May 4, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Adam Klein?
Dr. Adam Klein is an infectious disease specialist in Washington, District of Columbia. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Adam Klein practice?
Dr. Klein practices at 110 Irving Street NW, Washington, DC 20010. Dr. Klein's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dmand AI also links Dr. Klein to 1 hospital and 2 medical groups, and a free account names each one.
What is Dr. Adam Klein's office phone number?
The practice phone on file for Dr. Klein is (202) 877-7000. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Adam Klein's email address?
Dmand AI checks professional and personal email addresses for Dr. Klein through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Adam Klein's medical license number?
Dr. Klein holds New Jersey license 25MB11105300, one of the licenses on file in 2 states.
Which states has Dr. Adam Klein been licensed in?
Dmand AI has state licenses on file for Dr. Klein in New Jersey and Texas.
Which hospitals is Dr. Adam Klein affiliated with?
Dr. Klein practices at MedStar Washington Hospital Center in Washington, District of Columbia. Dr. Klein is also affiliated with Sibley Memorial Hospital. Dmand AI links Dr. Klein to 1 more hospital, named with a free account.
What medical group is Dr. Adam Klein part of?
Dr. Klein is linked to MedStar Medical Group. Dmand AI links Dr. Klein to 2 more medical groups, named with a free account.
Who does Dr. Adam Klein practice with?
Dmand AI links 4,830 HCPs to Dr. Klein's primary medical group, 44 of them infectious disease specialists. A free account lists them, with verified contacts.
Show 12 more questionsShow fewer questions
Does Dr. Adam Klein accept Medicare?
Yes. CMS data shows Dr. Klein billed Medicare for 498 services in 2024, and Dr. Klein accepts Medicare assignment.
Does Dr. Adam Klein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Klein as offering telehealth services.
What is Dr. Adam Klein's MIPS score?
Dr. Klein's MIPS final score for performance year 2026 is 94 out of 100, reported as part of a group.
How many Medicare patients does Dr. Adam Klein see?
CMS counts 216 Medicare patients who saw Dr. Klein in 2026, with an average age of 68.
Is Dr. Adam Klein board certified?
Yes. Dr. Klein is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Adam Klein bill to Medicare?
In 2024, Dr. Klein's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and office visit, established patient (99214).
Where did Dr. Adam Klein go to medical school?
Dr. Klein graduated from Touro College of Osteopathic Medicine - New York in 2016.
What drugs does Dr. Adam Klein prescribe most?
In 2024 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Biktarvy, Genvoya and Darunavir.
Has Dr. Adam Klein received payments from drug or device companies?
CMS Open Payments shows $483 in general payments to Dr. Klein from 10 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Adam Klein been practicing?
Dr. Klein graduated from medical school in 2016, 10 years ago.
What EHR does Dr. Adam Klein's practice use?
Dmand AI tracks the EHR system at MedStar Washington Hospital Center and at 2 more sites and 2 medical groups. The vendor and product are available with a free Dmand AI account.
What insurance does Dr. Adam Klein accept?
Dr. Klein is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Highmark. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit. The full carrier list is available with a free Dmand AI account.
Selling to infectious disease practices?
See infectious disease specialists 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