Giulio C. Rottaro Castejon, MD
Hospitalist Physician · New Haven, CT
Giulio C. Rottaro Castejon, MD is a hospitalist physician with a practice address in New Haven, Connecticut, and NPI 1235659434, issued on Jun 20, 2017. Check the license (Connecticut 67508, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Giulio C. Rottaro Castejon
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 67508 CT
271764 MA
Self-reported in NPPES; status is on the state search - Practice location
- 20 York Street, New Haven, CT 06510
- Phone
- (203) 688-9503
- Enumerated
- Jun 20, 2017
- Record last updated
- Jun 14, 2024
- Entity
- Type 1 · individual
Also registered at 20 York Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Aber, M.D.Student in an Organized Health Care Education/Training Program1548011455
- Sandra Abi Fadel, M.D.Diagnostic Radiology Physician1396308995
- Ahmad AbulabanStudent in an Organized Health Care Education/Training Program1306357546
- Zachary Adirim, M.D.Student in an Organized Health Care Education/Training Program1619669934
- Payal AgrawalStudent in an Organized Health Care Education/Training Program1982494860
- Santhosh AgumamidiStudent in an Organized Health Care Education/Training Program1558151449
Verify Giulio C. Rottaro Castejon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 67508Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average hospitalist physician in 2024
51 Medicare Part D claims for 16 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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): 93.3 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).
171 hospitalist physician records list a practice address in New Haven
They are 171 of the 9,793 NPPES records with a practice address in New Haven, and 400 hospitalist physician records in Connecticut.
All 171 in New Haven → All 400 in Connecticut → Every provider in New Haven →
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- Santosh Adhikari, MDHartford, CT1487331450
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- Anisha AdvaniNew Haven, CT1881836799
Common questions
What is Giulio C. Rottaro Castejon, MD's NPI number?
Giulio C. Rottaro Castejon, MD's National Provider Identifier (NPI) is 1235659434, issued on Jun 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Giulio C. Rottaro Castejon, MD located?
The NPPES record lists a practice address at 20 York Street, New Haven, CT, 06510. Phone: (203) 688-9503. Providers update this record themselves, so call before visiting.
How can I verify Giulio C. Rottaro Castejon, MD's license?
NPPES lists Connecticut license number 67508, 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 Giulio C. Rottaro Castejon, MD prescribe under Medicare Part D?
In 2024, Giulio C. Rottaro Castejon, MD had 51 Medicare Part D claims for 16 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Giulio C. Rottaro Castejon, MD's MIPS final score?
The 2023 MIPS final score is 93.3 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.