Dr. David S. Hatem, MD
- Medicare services, 2024
- 342
- Medicare patients, 2024
- 128
- Part D claims, 2024
- 2,419
- Publications
- 10
- Medical group
- 1
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Hatem'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 S. Hatem is an internist in Mendon, Massachusetts
Dr. Hatem practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Hatem's NPI, 1174506687, was assigned on November 29, 2005. Dr. Hatem graduated from Tufts University School of Medicine in 1985. Dr. Hatem holds Massachusetts license 59847.
- NPI
- 1174506687NPI Registry (opens in a new tab)
- NPI enumeration date
- November 29, 2005
- NPI status
- Active
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. David S. Hatem practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Hatem's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David S. Hatem is affiliated with 1 site of care and 1 medical group
Dr. Hatem's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. The medical group on file is UMass Memorial Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David S. Hatem's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hatem practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David S. Hatem is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Hatem's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hatem is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Hatem
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. David S. Hatem billed Medicare for 342 services in 2024
CMS data shows 342 Medicare services from Dr. Hatem across 4 procedure codes in 2024, for 128 Medicare patients. Medicare paid $15,111 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hatem's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2862024: 24514%
- Other services
- 2023: 882024: 9710%
Dr. Hatem compared with the Massachusetts median for internists, 2024
- Dr. Hatem
- Massachusetts median
- Medicare services
- 342vs 43121% below
- Medicare patients
- 128vs 19434% below
- Part D claims
- 1,961vs 4024.9 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Hatem'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. Hatem and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David S. Hatem treated 128 Medicare patients in 2024, average age 74
CMS counts 128 Medicare patients who saw Dr. Hatem in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hatem's median patient age at 76, with 28% women.
Dr. Hatem's Medicare patients by age, 2024
Dr. Hatem's Medicare patients by sex, 2024
- Women4535%
- Men8365%
Chronic conditions among Dr. Hatem's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis53%
- Anxiety27%
- Chronic kidney disease27%
- Ischemic heart disease26%
- Mood disorders24%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hatem's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women28%
- Men72%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David S. Hatem wrote 2,419 Medicare Part D claims in 2024
In 2024, Dr. Hatem wrote 2,419 Medicare Part D claims for 212 patients. 89% of them were for generic drugs. CMS names the drug for 1,961 of them, across 53 drugs with 11 or more claims each, at $80,389 in total drug cost. In 2023, CMS named 1,937 claims across 51 drugs.
Dr. Hatem's Part D claims by kind of drug, 2024
- Generic2,165 claims89%
- Brand-name243 claims10%
- Other11 claims0%
Dr. Hatem'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. Hatem's Part D claims, 2024
- Opioids3%74 of 2,419 claims
- Antibiotics2%39 of 2,419 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: 1,9372024: 1,9611%
Drugs named by CMS: 53 in 2024, 51 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
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Dr. David S. Hatem has 10 publications on record
Dmand AI links 10 papers to Dr. Hatem, published from 2014 to 2025. The most frequent topics are Curriculum, Educational Measurement and Educational Status. Dr. Hatem has published most often in Acad Med. Dr. Hatem's most frequent co-authors are Beth Lown, MD, Robert Shochet, MD and Eric J. Alper, MD.
Dr. Hatem's papers by year, 2014 to 2025
Topics Dr. Hatem writes about most
- Curriculum
- Educational Measurement
- Educational Status
- Professional-Patient Relations
Dr. Hatem's most frequent co-authors
Recent publications by Dr. Hatem
Int J Nurs Stud
See who Dr. Hatem researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hatem works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David S. Hatem graduated from Tufts University School of Medicine
Dr. Hatem graduated from Tufts University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David S. Hatem'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David S. Hatem
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 S. Hatem's NPI number?
Dr. David S. Hatem's NPI number is 1174506687. It was assigned on November 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David S. Hatem?
Dr. David S. Hatem is an internist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David S. Hatem practice?
Dr. Hatem practices at 55 North Ave, Mendon, MA 01756. Dr. Hatem's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts.
What is Dr. David S. Hatem's office phone number?
The practice phone on file for Dr. Hatem is (508) 334-1000.
What is Dr. David S. Hatem's medical license number?
Dr. Hatem holds Massachusetts license 59847.
What medical group is Dr. David S. Hatem part of?
Dr. Hatem is linked to UMass Memorial Medical Group.
Does Dr. David S. Hatem accept Medicare?
Yes. CMS data shows Dr. Hatem billed Medicare for 342 services in 2024.
How many Medicare patients does Dr. David S. Hatem see?
CMS counts 128 Medicare patients who saw Dr. Hatem in 2024, with an average age of 74.
What services does Dr. David S. Hatem bill to Medicare?
In 2024, Dr. Hatem's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).
Where did Dr. David S. Hatem go to medical school?
Dr. Hatem graduated from Tufts University School of Medicine in 1985.
Show 4 more questionsShow fewer questions
What drugs does Dr. David S. Hatem prescribe most?
In 2024 Medicare Part D data, Dr. Hatem's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Hydrochlorothiazide.
How long has Dr. David S. Hatem been practicing?
Dr. Hatem graduated from medical school in 1985, 41 years ago.
Does Dr. David S. Hatem do research?
Dmand AI links 10 publications to Dr. Hatem, published from 2014 to 2025.
Who does Dr. David S. Hatem publish with?
Dr. Hatem's most frequent co-authors are Beth Lown, MD (2 shared papers), Robert Shochet, MD (2 shared papers) and Eric J. Alper, MD (1 shared paper).
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