Allison S. Chatalbash
- Medicare services, 2024
- 464
- Medicare patients, 2024
- 215
- Part D claims, 2024
- 64
- Hospital affiliations
- 1
- Industry payments
- $56
- Practice address
- 2014 Washington Street, Newton, MA 02462
- Practice phone
- Call (617) 243-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Allison Chatalbash'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.
Allison S. Chatalbash is a hospitalist in Newton Lower Falls, Massachusetts
Allison Chatalbash practices at Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham.
Allison Chatalbash's NPI, 1255573192, was assigned on March 24, 2009. Allison Chatalbash holds Massachusetts license 250935.
- NPI
- 1255573192NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436306487
- NPI enumeration date
- March 24, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 243-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Allison S. Chatalbash practices at Newton-Wellesley Hospital in Newton, Massachusetts
Allison Chatalbash's primary practice is Newton-Wellesley Hospital, at 2014 Washington Street, Newton, MA 02462 in Middlesex County. The practice phone is (617) 243-6000.
- Newton-Wellesley Hospital2014 Washington Street, Newton, MA 02462 · Middlesex CountyPhone(617) 243-6000
Source: Dmand AI Affiliation Data
Allison S. Chatalbash is affiliated with 3 sites of care and 1 medical group
Allison Chatalbash's primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham. The medical group on file is Mass General Brigham Medical Group. Dmand AI also links Allison Chatalbash to 1 more hospice and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Allison S. Chatalbash's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Allison Chatalbash practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Newton-Wellesley Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Allison S. Chatalbash is one of 502 hospitalists in Massachusetts
Hospitalist is Allison Chatalbash's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Allison Chatalbash is licensed in Massachusetts.
Specialties and state licenses
- Hospitalist, MassachusettsPrimary
Hospitalists near Allison Chatalbash
Counts of hospitalists 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
Allison S. Chatalbash billed Medicare for 464 services in 2024
CMS data shows 464 Medicare services from Allison Chatalbash across 5 procedure codes in 2024, for 215 Medicare patients. Medicare paid $40,865 for them. Every service was in a facility, such as a hospital, rather than an office.
Allison Chatalbash's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7392024: 46437%
Allison Chatalbash compared with the Massachusetts median for hospitalists, 2024
- Allison Chatalbash
- Massachusetts median
- Medicare services
- 464vs 464Close to median
- Medicare patients
- 215vs 25315% below
- Part D claims
- 22vs 6566% below
Medians across 477 hospitalists in Massachusetts with Dmand AI profiles that report each measure.
Allison Chatalbash'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Allison S. Chatalbash treated 215 Medicare patients in 2024, average age 81
CMS counts 215 Medicare patients who saw Allison Chatalbash in 2024. The largest group is 85 and over, with 82 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Allison Chatalbash's median patient age at 79, with 58% women.
Allison Chatalbash's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Allison Chatalbash's Medicare patients by sex, 2024
- Women13362%
- Men8238%
Chronic conditions among Allison Chatalbash's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Anxiety53%
- Chronic kidney disease52%
- Ischemic heart disease52%
- Mood disorders44%
- Atrial fibrillation43%
Share of Medicare patients with each condition. A patient can have several.
Allison Chatalbash's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Allison S. Chatalbash wrote 64 Medicare Part D claims in 2024
In 2024, Allison Chatalbash wrote 64 Medicare Part D claims for 39 patients. 91% of them were for generic drugs. CMS names the drug for 22 of them, across 2 drugs with 11 or more claims each, at $6,393 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Allison Chatalbash's Part D claims by kind of drug, 2024
- Generic58 claims91%
- Brand-name and other6 claims9%
Allison Chatalbash's most prescribed drugs by claims, 2023
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 Allison Chatalbash's Part D claims, 2024
- Antibiotics19%12 of 64 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, 2020 to 2023
- 2020
- 2023
- Claims for drugs CMS names
- 2020: 112023: 22100%
Drugs named by CMS: 2 in 2023, 1 in 2020.
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 Allison S. Chatalbash takes part in Medicare
Allison Chatalbash 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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Allison S. Chatalbash received $56 in industry payments in 2017
CMS Open Payments shows 1 general payment to Allison Chatalbash from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $56.
Companies that paid Allison Chatalbash the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Allison S. Chatalbash'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) |
| 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 Allison S. Chatalbash
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What is Allison S. Chatalbash's NPI number?
Allison S. Chatalbash's NPI number is 1255573192. It was assigned on March 24, 2009, and it is active in the NPI Registry.
What does Allison S. Chatalbash specialize in?
Allison S. Chatalbash is a hospitalist in Newton Lower Falls, Massachusetts. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Allison S. Chatalbash practice?
Allison Chatalbash practices at 2014 Washington Street, Newton, MA 02462. Allison Chatalbash's primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham. Dmand AI also links Allison Chatalbash to 1 hospice and 1 hospital outpatient department.
What is Allison S. Chatalbash's office phone number?
The practice phone on file for Allison Chatalbash is (617) 243-6000.
What is Allison S. Chatalbash's medical license number?
Allison Chatalbash holds Massachusetts license 250935.
Which hospitals is Allison S. Chatalbash affiliated with?
Allison Chatalbash practices at Newton-Wellesley Hospital in Newton, Massachusetts.
What medical group is Allison S. Chatalbash part of?
Allison Chatalbash is linked to Mass General Brigham Medical Group.
Does Allison S. Chatalbash accept Medicare?
Yes. CMS data shows Allison Chatalbash billed Medicare for 464 services in 2024, and Allison Chatalbash accepts Medicare assignment.
How many Medicare patients does Allison S. Chatalbash see?
CMS counts 215 Medicare patients who saw Allison Chatalbash in 2024, with an average age of 81.
What services does Allison S. Chatalbash bill to Medicare?
In 2024, Allison Chatalbash's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Show 3 more questionsShow fewer questions
What drugs does Allison S. Chatalbash prescribe most?
In 2023 Medicare Part D data, Allison Chatalbash's most prescribed drugs by claims were Eliquis and Omeprazole.
Has Allison S. Chatalbash received payments from drug or device companies?
CMS Open Payments shows $56 in general payments to Allison Chatalbash from 1 company from 2017 to 2017. The largest total came from Allergan Inc.
How long has Allison S. Chatalbash been practicing?
Allison Chatalbash graduated from medical school in 2009, 17 years ago.
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