Dr. Natasha P. Haag, MD
- Medicare services, 2024
- 490
- Medicare patients, 2024
- 194
- Part D claims, 2024
- 173
- Hospital affiliations
- 2
- Industry payments
- $100
- Practice address
- 900 23rd St NW, Washington, DC 20037
- Practice phone
- Call (202) 716-4605
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Haag's professional email, personal email and mobile number
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Dr. Natasha P. Haag is an internist in Washington, District of Columbia
Dr. Haag practices at The George Washington University Hospital in Washington, District of Columbia, part of Universal Health Services.
Dr. Haag's NPI, 1417948399, was assigned on October 31, 2005. Dr. Haag graduated from George Washington University School of Medicine in 2002. Dr. Haag holds Maryland license D0062949.
- NPI
- 1417948399NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103861638
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 716-4605
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Natasha P. Haag practices at The George Washington University Hospital in Washington, District of Columbia
Dr. Haag's primary practice is The George Washington University Hospital, at 900 23rd St NW, Washington, DC 20037 in The District County. The practice phone is (202) 716-4605.
- The George Washington University Hospital900 23rd St NW, Washington, DC 20037 · The District CountyPhone(202) 716-4605
Source: Dmand AI Affiliation Data
Dr. Natasha P. Haag is affiliated with 3 sites of care and 3 medical groups
Dr. Haag's primary practice is The George Washington University Hospital in Washington, District of Columbia, part of Universal Health Services. Dr. Haag is also affiliated with Suburban Hospital. The medical group on file is Johns Hopkins Community Physicians. Dmand AI also links Dr. Haag to 2 more medical groups and 1 group practice or clinic, 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. Natasha P. Haag's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Haag practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The George Washington University Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Natasha P. Haag is one of 660 internists in District of Columbia
Internal medicine is Dr. Haag's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Haag is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Haag
Counts of internists 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. Natasha P. Haag billed Medicare for 490 services in 2024
CMS data shows 490 Medicare services from Dr. Haag across 4 procedure codes in 2024, for 194 Medicare patients. Medicare paid $48,116 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Haag's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6972024: 49030%
Dr. Haag compared with the District of Columbia median for internists, 2024
- Dr. Haag
- District of Columbia median
- Medicare services
- 490vs 35438% above
- Medicare patients
- 194vs 15327% above
- Part D claims
- 51vs 11054% below
Medians across 591 internists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Haag'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Haag and other internists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Natasha P. Haag treated 194 Medicare patients in 2024, average age 81
CMS counts 194 Medicare patients who saw Dr. Haag in 2024. The largest group is 75 to 84, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.62, 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. Haag's median patient age at 75, with 50% women.
Dr. Haag's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Haag's Medicare patients by sex, 2024
- Women11157%
- Men8343%
Chronic conditions among Dr. Haag's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Chronic kidney disease54%
- Diabetes47%
- Mood disorders47%
- Stroke or TIA46%
- Ischemic heart disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Haag's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women50%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Natasha P. Haag wrote 173 Medicare Part D claims in 2024
In 2024, Dr. Haag wrote 173 Medicare Part D claims for 52 patients. 94% of them were for generic drugs. CMS names the drug for 51 of them, across 4 drugs with 11 or more claims each, at $202 in total drug cost. In 2023, CMS named 22 claims across 2 drugs.
Dr. Haag's Part D claims by kind of drug, 2024
- Generic162 claims94%
- Brand-name11 claims6%
Dr. Haag'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. Haag's Part D claims, 2024
- Antibiotics10%17 of 173 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: 222024: 51132%
Drugs named by CMS: 4 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), 2024 data
How Dr. Natasha P. Haag takes part in Medicare
Dr. Haag 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)
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Dr. Natasha P. Haag received $100 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Haag from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $100.
Companies that paid Dr. Haag the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Natasha P. Haag graduated from George Washington University School of Medicine
Dr. Haag graduated from George Washington University School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Natasha P. Haag'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. Natasha P. Haag
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. Natasha P. Haag's NPI number?
Dr. Natasha P. Haag's NPI number is 1417948399. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Natasha P. Haag?
Dr. Natasha P. Haag is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Natasha P. Haag practice?
Dr. Haag practices at 900 23rd St NW, Washington, DC 20037. Dr. Haag's primary practice is The George Washington University Hospital in Washington, District of Columbia, part of Universal Health Services. Dmand AI also links Dr. Haag to 2 medical groups and 1 group practice or clinic.
What is Dr. Natasha P. Haag's office phone number?
The practice phone on file for Dr. Haag is (202) 716-4605.
What is Dr. Natasha P. Haag's medical license number?
Dr. Haag holds Maryland license D0062949.
Which hospitals is Dr. Natasha P. Haag affiliated with?
Dr. Haag practices at The George Washington University Hospital in Washington, District of Columbia. Dr. Haag is also affiliated with Suburban Hospital.
What medical group is Dr. Natasha P. Haag part of?
Dr. Haag is linked to Johns Hopkins Community Physicians. Dmand AI links Dr. Haag to 2 more medical groups.
Does Dr. Natasha P. Haag accept Medicare?
Yes. CMS data shows Dr. Haag billed Medicare for 490 services in 2024, and Dr. Haag accepts Medicare assignment.
How many Medicare patients does Dr. Natasha P. Haag see?
CMS counts 194 Medicare patients who saw Dr. Haag in 2024, with an average age of 81.
What services does Dr. Natasha P. Haag bill to Medicare?
In 2024, Dr. Haag's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and care management and other visits (99497).
Show 4 more questionsShow fewer questions
Where did Dr. Natasha P. Haag go to medical school?
Dr. Haag graduated from George Washington University School of Medicine in 2002.
What drugs does Dr. Natasha P. Haag prescribe most?
In 2024 Medicare Part D data, Dr. Haag's most prescribed drugs by claims were Metoprolol Tartrate, Carvedilol and Furosemide.
Has Dr. Natasha P. Haag received payments from drug or device companies?
CMS Open Payments shows $100 in general payments to Dr. Haag from 1 company from 2016 to 2016. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Natasha P. Haag been practicing?
Dr. Haag graduated from medical school in 2002, 24 years ago.
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