Dr. Gregorio A. Castillo, MD
- Medicare services, 2024
- 22
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 25
- Industry payments
- $69
- Affiliated sites
- 2
- Practice address
- 905 Herrontown Road, Princeton, NJ 08540
- Practice phone
- Call (609) 497-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Princeton House Behavioral Health - Inpatient Princeton
Psychiatric Inpatient Facility · Princeton, New Jersey
Find Dr. Castillo's professional email, personal email and mobile number
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Dr. Gregorio A. Castillo is a psychiatrist in Princeton, New Jersey
Dr. Castillo practices at Princeton House Behavioral Health - Inpatient Princeton in Princeton, New Jersey.
Dr. Castillo's NPI, 1013095306, was assigned on November 2, 2006. Dr. Castillo holds New Jersey license 25MA06768600.
- NPI
- 1013095306NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234394693
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (609) 497-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregorio A. Castillo practices at Princeton House Behavioral Health - Inpatient Princeton in Princeton, New Jersey
Dr. Castillo's primary practice is Princeton House Behavioral Health - Inpatient Princeton, at 905 Herrontown Road, Princeton, NJ 08540. The practice phone is (609) 497-3300.
- Princeton House Behavioral Health - Inpatient Princeton905 Herrontown Road, Princeton, NJ 08540Phone(609) 497-3300
Source: Dmand AI Affiliation Data
Dr. Gregorio A. Castillo is affiliated with 2 sites of care and 1 medical group
Dr. Castillo's primary practice is Princeton House Behavioral Health - Inpatient Princeton in Princeton, New Jersey. The medical group on file is Princeton House Behavioral Health. Dmand AI also links Dr. Castillo to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregorio A. Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castillo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Princeton House Behavioral Health - Inpatient Princeton | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregorio A. Castillo is one of 1,216 psychiatrists in New Jersey
Psychiatry is Dr. Castillo's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Castillo is licensed in New Jersey.
Specialties and state licenses
- Psychiatry, New JerseyPrimary
Psychiatrists near Dr. Castillo
Counts of psychiatrists 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. Gregorio A. Castillo billed Medicare for 22 services in 2024
CMS data shows 22 Medicare services from Dr. Castillo across 1 procedure code in 2024, for 24 Medicare patients. Medicare paid $1,356 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Castillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 342024: 2235%
Dr. Castillo compared with the New Jersey median for psychiatrists, 2024
- Dr. Castillo
- New Jersey median
- Medicare services
- 22vs 18488% below
- Medicare patients
- 24vs 5758% below
- Part D claims
- 17vs 17590% below
Medians across 1,365 psychiatrists in New Jersey with Dmand AI profiles that report each measure.
Dr. Castillo'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castillo and other psychiatrists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregorio A. Castillo treated 24 Medicare patients in 2024, average age 56
CMS counts 24 Medicare patients who saw Dr. Castillo in 2024. 75% of them have anxiety, and 75% have depression. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Castillo's median patient age at 31, with 26% women.
Chronic conditions among Dr. Castillo's Medicare patients, 2024
- Anxiety75%
- Depression75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders75%
- Alcohol and drug use disorders71%
- Bipolar disorder67%
- Schizophrenia and other psychoses58%
Share of Medicare patients with each condition. A patient can have several.
Dr. Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women26%
- Men69%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregorio A. Castillo wrote 25 Medicare Part D claims in 2024
In 2024, Dr. Castillo wrote 25 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $90 in total drug cost.
Dr. Castillo's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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. Gregorio A. Castillo takes part in Medicare
Dr. Castillo 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. Gregorio A. Castillo received $69 in industry payments from 2016 to 2020
CMS Open Payments shows 5 general payments to Dr. Castillo from 4 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $26.
General payments to Dr. Castillo by program year, 2016 to 2020
Companies that paid Dr. Castillo the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregorio A. Castillo'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 Dr. Gregorio A. Castillo
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What is Dr. Gregorio A. Castillo's NPI number?
Dr. Gregorio A. Castillo's NPI number is 1013095306. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregorio A. Castillo?
Dr. Gregorio A. Castillo is a psychiatrist in Princeton, New Jersey. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Gregorio A. Castillo practice?
Dr. Castillo practices at 905 Herrontown Road, Princeton, NJ 08540. Dr. Castillo's primary practice is Princeton House Behavioral Health - Inpatient Princeton in Princeton, New Jersey. Dmand AI also links Dr. Castillo to 1 group practice or clinic.
What is Dr. Gregorio A. Castillo's office phone number?
The practice phone on file for Dr. Castillo is (609) 497-3300.
What is Dr. Gregorio A. Castillo's medical license number?
Dr. Castillo holds New Jersey license 25MA06768600.
What medical group is Dr. Gregorio A. Castillo part of?
Dr. Castillo is linked to Princeton House Behavioral Health.
Does Dr. Gregorio A. Castillo accept Medicare?
Yes. CMS data shows Dr. Castillo billed Medicare for 22 services in 2024, and Dr. Castillo accepts Medicare assignment.
How many Medicare patients does Dr. Gregorio A. Castillo see?
CMS counts 24 Medicare patients who saw Dr. Castillo in 2024, with an average age of 56.
What services does Dr. Gregorio A. Castillo bill to Medicare?
In 2024, Dr. Castillo's most billed Medicare services were hospital inpatient care (99232).
What drugs does Dr. Gregorio A. Castillo prescribe most?
In 2020 Medicare Part D data, Dr. Castillo's most prescribed drugs by claims were Sertraline HCl.
Has Dr. Gregorio A. Castillo received payments from drug or device companies?
CMS Open Payments shows $69 in general payments to Dr. Castillo from 4 companies from 2016 to 2020. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Gregorio A. Castillo been practicing?
Dr. Castillo graduated from medical school in 1991, 35 years ago.
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