Dr. Doris L. Altherr, MD
- Medicare services, 2024
- 241
- Medicare patients, 2024
- 95
- Part D claims, 2024
- 5,003
- Hospital affiliations
- 2
- Industry payments
- $1,312
- Practice address
- 41 Brewster Rd, Bristol, CT 06010
- Practice phone
- Call (860) 585-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Doris L. Altherr is an internist in Bristol, Connecticut
Dr. Altherr practices at Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group.
Dr. Altherr's NPI, 1881680775, was assigned on September 26, 2005. Dr. Altherr graduated from Creighton University School of Medicine in 1994. Dr. Altherr holds Connecticut license 037854.
- NPI
- 1881680775NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496881724
- NPI enumeration date
- September 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 585-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Doris L. Altherr practices at Bristol Hospital in Bristol, Connecticut
Dr. Altherr's primary practice is Bristol Hospital, at 41 Brewster Rd, Bristol, CT 06010 in Hartford County. The practice phone is (860) 585-3000.
- Bristol Hospital41 Brewster Rd, Bristol, CT 06010 · Hartford CountyPhone(860) 585-3000
Source: Dmand AI Affiliation Data
Dr. Doris L. Altherr is affiliated with 5 sites of care and 1 medical group
Dr. Altherr's primary practice is Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group. Dr. Altherr is also affiliated with The Hospital of Central Connecticut. The medical group on file is Bristol Health Medical Group. Dmand AI also links Dr. Altherr to 1 more home health agency, 1 hospice and 1 skilled nursing facility, 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. Doris L. Altherr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Altherr practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bristol Hospital | Available with a free account |
| +4 more affiliated sites | 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 Bristol Hospital and Health Care Group and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Doris L. Altherr is one of 2,189 internists in Connecticut
Internal medicine is Dr. Altherr's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Altherr is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Altherr
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. Doris L. Altherr billed Medicare for 241 services in 2024
CMS data shows 241 Medicare services from Dr. Altherr across 5 procedure codes in 2024, for 95 Medicare patients. Medicare paid $21,709 for them. Every service was in an office.
Dr. Altherr's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1792024: 15116%
- Other services
- 2023: 732024: 73No change
- Lab and pathology
- 2023: 02024: 17
- Tests and treatments
- 2023: 392024: 0100%
Dr. Altherr compared with the Connecticut median for internists, 2024
- Dr. Altherr
- Connecticut median
- Medicare services
- 241vs 39038% below
- Medicare patients
- 95vs 17245% below
- Part D claims
- 4,225vs 34312.3 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Altherr'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. Altherr?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Altherr and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Doris L. Altherr treated 95 Medicare patients in 2024, average age 78
CMS counts 95 Medicare patients who saw Dr. Altherr in 2024. The largest group is 75 to 84, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Altherr's median patient age at 72, with 76% women.
Dr. Altherr's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Altherr's Medicare patients by sex, 2024
- Women7377%
- Men2223%
Chronic conditions among Dr. Altherr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes33%
- Chronic kidney disease32%
- Depression25%
- Mood disorders25%
- Osteoporosis25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Altherr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women76%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Doris L. Altherr wrote 5,003 Medicare Part D claims in 2024
In 2024, Dr. Altherr wrote 5,003 Medicare Part D claims for 291 patients. 87% of them were for generic drugs. CMS names the drug for 4,225 of them, across 86 drugs with 11 or more claims each, at $276,588 in total drug cost. In 2023, CMS named 4,250 claims across 103 drugs.
Dr. Altherr's Part D claims by kind of drug, 2024
- Generic4,376 claims87%
- Brand-name and other627 claims13%
Dr. Altherr'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. Altherr's Part D claims, 2024
- Opioids3%169 of 5,003 claims
- Antibiotics1%40 of 5,003 claims
- Antipsychotics, patients 65 and over0%21 of 5,003 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: 4,2502024: 4,2251%
Drugs named by CMS: 86 in 2024, 103 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. Doris L. Altherr takes part in Medicare
Dr. Altherr 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. Doris L. Altherr received $1,312 in industry payments from 2016 to 2025
CMS Open Payments shows 64 general payments to Dr. Altherr from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $267.
General payments to Dr. Altherr by program year, 2016 to 2025
General payments to Dr. Altherr by kind, 2016 to 2025
- Food and beverage$1,28998%
- Education$232%
Companies that paid Dr. Altherr the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Doris L. Altherr graduated from Creighton University School of Medicine
Dr. Altherr graduated from Creighton University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Doris L. Altherr'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. Doris L. Altherr
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. Doris L. Altherr's NPI number?
Dr. Doris L. Altherr's NPI number is 1881680775. It was assigned on September 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Doris L. Altherr?
Dr. Doris L. Altherr is an internist in Bristol, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Doris L. Altherr practice?
Dr. Altherr practices at 41 Brewster Rd, Bristol, CT 06010. Dr. Altherr's primary practice is Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group. Dmand AI also links Dr. Altherr to 1 home health agency, 1 hospice and 1 skilled nursing facility.
What is Dr. Doris L. Altherr's office phone number?
The practice phone on file for Dr. Altherr is (860) 585-3000.
What is Dr. Doris L. Altherr's medical license number?
Dr. Altherr holds Connecticut license 037854.
Which hospitals is Dr. Doris L. Altherr affiliated with?
Dr. Altherr practices at Bristol Hospital in Bristol, Connecticut. Dr. Altherr is also affiliated with The Hospital of Central Connecticut.
What medical group is Dr. Doris L. Altherr part of?
Dr. Altherr is linked to Bristol Health Medical Group.
Does Dr. Doris L. Altherr accept Medicare?
Yes. CMS data shows Dr. Altherr billed Medicare for 241 services in 2024, and Dr. Altherr accepts Medicare assignment.
How many Medicare patients does Dr. Doris L. Altherr see?
CMS counts 95 Medicare patients who saw Dr. Altherr in 2024, with an average age of 78.
What services does Dr. Doris L. Altherr bill to Medicare?
In 2024, Dr. Altherr's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99215).
Show 4 more questionsShow fewer questions
Where did Dr. Doris L. Altherr go to medical school?
Dr. Altherr graduated from Creighton University School of Medicine in 1994.
What drugs does Dr. Doris L. Altherr prescribe most?
In 2024 Medicare Part D data, Dr. Altherr's most prescribed drugs by claims were Levothyroxine Sodium, Lisinopril and Atorvastatin Calcium.
Has Dr. Doris L. Altherr received payments from drug or device companies?
CMS Open Payments shows $1,312 in general payments to Dr. Altherr from 17 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Doris L. Altherr been practicing?
Dr. Altherr graduated from medical school in 1994, 32 years ago.
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