Allison S. Chatalbash

  • Newton Lower Falls, MA
  • Hospitalist
NPI1255573192PAC ID9436306487
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
Social profiles

Primary practice

Newton-Wellesley Hospital

Hospital · Newton, Massachusetts

See all 4 affiliations

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.

View contacts for free

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 and contact details
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.

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.

See all 4 affiliations for Allison Chatalbash

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.

EHR by site
SiteEHR vendor and product
Newton-Wellesley HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Allison Chatalbash practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.

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, MassachusettsPrimaryLicense 250935 · taxonomy 208M00000X

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.

Medicare services, 2024464
Medicare patients215
Paid by Medicare$40,865
Procedure codes5

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.

See all procedures by Allison Chatalbash

Need commercial claims for Allison Chatalbash?

Medicare shows one payer. Book a meeting to get commercial claims data for Allison Chatalbash and other hospitalists in Massachusetts.

Book a meeting

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.

Medicare patients, 2024215
Average age81
Average risk score2.54
Also on Medicaid19%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Anxiety53%
  5. Chronic kidney disease52%
  6. Ischemic heart disease52%
  7. Mood disorders44%
  8. 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.

Part D claims, 202464
Drugs named by CMS2
Total drug cost$6,393
Part D patients39

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.

See all prescribing by Allison Chatalbash

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)

For MedTech and pharma teams

Find hospitalists like Allison Chatalbash by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

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.

See all payments to Allison Chatalbash

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Allison S. Chatalbash's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Allison S. Chatalbash

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

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.

Selling to hospitalist practices?

See hospitalists in Massachusetts 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

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)