Guillermo Jose Ballarino, M.D.
Pulmonary Disease Physician · Danbury, CT
Guillermo Jose Ballarino, M.D. is a pulmonary disease physician with a practice address in Danbury, Connecticut, and NPI 1386810802, issued on May 5, 2008. Check the license (Connecticut 050532, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Guillermo Jose Ballarino
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 050532 CT
Self-reported in NPPES; status is on the state search - Practice location
- 24 Hospital Ave, Danbury, CT 06810
- Phone
- (203) 739-7070
- Enumerated
- May 5, 2008
- Record last updated
- Jul 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120606000723); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 24 Hospital Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline AddonaStudent in an Organized Health Care Education/Training Program1669232443
- Fernando Afonso, M.D.Internal Medicine Physician1992980536
- Alka Aggarwal, MDInternal Medicine Physician1427041987
- Mohamed Ahmed, M.D.Internal Medicine Physician1235391756
- Syed Rakin Ahmed, MD, PHDStudent in an Organized Health Care Education/Training Program1518809870
- Gregory Albert, MDAnesthesiology Physician1588797930
Verify Guillermo Jose Ballarino in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 050532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average pulmonary disease physician in 2024
1,546 Medicare Part D claims for 395 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Trelegy Ellipta281 claims
- Anoro Ellipta206 claims
- Albuterol Sulfate Hfa144 claims
- Breo Ellipta135 claims
- Azithromycin87 claims
- Montelukast Sodium67 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,043.47
8 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Nuvance Health Medical Practice CT IncDanbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pulmonary Disease Physician providers in Connecticut
There are 280 pulmonary disease physician records in Connecticut.
Other pulmonary disease physician records in Connecticut
- Olurotimi Adekolu, M.B.CH.BNew Haven, CT1073871372
- Amy Ahasic, MD, MPHNew Haven, CT1619073210
- Saul Ahola, MDDayville, CT1659431716
- Naser Adeeb Aljundi, MDNew London, CT1205320827
- Augustine Andoh-Duku, M.DDanbury, CT1992010565
- Saima Ansari, M.D.Vernon, CT1841309192
- Danielle Antin-Ozerkis, MDNew Haven, CT1336234947
- Mohammed Anwar, MDVernon, CT1669411104
- Ashish Arora, MDWaterbury, CT1255549622
- Joseph Bahgat, MDHartford, CT1356803050
Common questions
What is Guillermo Jose Ballarino, M.D.'s NPI number?
Guillermo Jose Ballarino, M.D.'s National Provider Identifier (NPI) is 1386810802, issued on May 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Jose Ballarino, M.D. located?
The NPPES record lists a practice address at 24 Hospital Ave, Danbury, CT, 06810. Phone: (203) 739-7070. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Jose Ballarino, M.D.'s license?
NPPES lists Connecticut license number 050532, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Guillermo Jose Ballarino, M.D. prescribe under Medicare Part D?
In 2024, Guillermo Jose Ballarino, M.D. had 1,546 Medicare Part D claims for 395 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Guillermo Jose Ballarino, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.