Dr. Ryan Steven Hirschfeld, MD
- Medicare services, 2021
- 130
- Part D claims, 2021
- 102
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 3
- Practice address
- Health Sciences Center Suny, Stony Brook, NY 11794
- Practice phone
- Call (631) 444-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hirschfeld'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.
Dr. Ryan Steven Hirschfeld is a pediatrician in Stony Brook, New York
Dr. Hirschfeld practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.
Dr. Hirschfeld's NPI, 1831459874, was assigned on May 24, 2012. Dr. Hirschfeld graduated from UMass Chan Medical School in 2012. Dr. Hirschfeld holds New York license 312909.
- NPI
- 1831459874NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2012
- NPI status
- Active
- Practice phone
- (631) 444-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ryan Steven Hirschfeld practices at 2 locations in Stony Brook, New York
Dr. Hirschfeld's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Dr. Hirschfeld also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.
- Stony Brook University HospitalPrimaryHealth Sciences Center Suny, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4000
- Stony Brook University Hospital101 Nicolls Rd, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Ryan Steven Hirschfeld is affiliated with 2 sites of care and 1 medical group
Dr. Hirschfeld's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. The medical group on file is Stony Brook Children's Service. Dmand AI also links Dr. Hirschfeld to 1 more clinical lab, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan Steven Hirschfeld's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hirschfeld practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stony Brook University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Stony Brook University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ryan Steven Hirschfeld is one of 4,313 pediatricians in New York
Pediatrics is Dr. Hirschfeld's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Hirschfeld's licenses on file in 3 states: New York, Maryland and Rhode Island.
Specialties and state licenses
- Pediatrics, New YorkPrimary
- Maryland license
- Internal medicine, Rhode Island
Pediatricians near Dr. Hirschfeld
Counts of pediatricians 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. Ryan Steven Hirschfeld billed Medicare for 130 services in 2021
CMS data shows 130 Medicare services from Dr. Hirschfeld across 4 procedure codes in 2021. Medicare paid $8,175 for them. Every service was in an office.
Dr. Hirschfeld's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1302021: 9825%
- Lab and pathology
- 2020: 142021: 32129%
Dr. Hirschfeld compared with the New York median for pediatricians, 2021
- Dr. Hirschfeld
- New York median
- Medicare services
- 130vs 642.0 times
- Part D claims
- 102vs 147.3 times
Medians across 641 pediatricians in New York with Dmand AI profiles that report each measure.
Dr. Hirschfeld's most billed Medicare procedure codes, 2021
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. Hirschfeld and other pediatricians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Steven Hirschfeld's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Hirschfeld's median patient age at 10, with 40% women.
Dr. Hirschfeld's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women40%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Ryan Steven Hirschfeld wrote 102 Medicare Part D claims in 2021
In 2021, Dr. Hirschfeld wrote 102 Medicare Part D claims. They cover 7 drugs, with $479 in total drug cost. In 2020, CMS named 39 claims across 3 drugs.
Dr. Hirschfeld's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 392021: 102162%
Drugs named by CMS: 7 in 2021, 3 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ryan Steven Hirschfeld graduated from UMass Chan Medical School
Dr. Hirschfeld graduated from UMass Chan Medical School in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan Steven Hirschfeld'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Ryan Steven Hirschfeld
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ryan Steven Hirschfeld's NPI number?
Dr. Ryan Steven Hirschfeld's NPI number is 1831459874. It was assigned on May 24, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Steven Hirschfeld?
Dr. Ryan Steven Hirschfeld is a pediatrician in Stony Brook, New York. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Ryan Steven Hirschfeld practice?
Dr. Hirschfeld practices at Health Sciences Center Suny, Stony Brook, NY 11794. Dr. Hirschfeld also practices at 101 Nicolls Rd, Stony Brook, NY 11794. Dr. Hirschfeld's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dmand AI also links Dr. Hirschfeld to 1 clinical lab.
What is Dr. Ryan Steven Hirschfeld's office phone number?
The practice phone on file for Dr. Hirschfeld is (631) 444-4000.
What is Dr. Ryan Steven Hirschfeld's medical license number?
Dr. Hirschfeld holds New York license 312909, one of the licenses on file in 3 states.
Which states has Dr. Ryan Steven Hirschfeld been licensed in?
Dmand AI has state licenses on file for Dr. Hirschfeld in New York, Maryland and Rhode Island.
Which hospitals is Dr. Ryan Steven Hirschfeld affiliated with?
Dr. Hirschfeld practices at Stony Brook University Hospital in Stony Brook, New York.
What medical group is Dr. Ryan Steven Hirschfeld part of?
Dr. Hirschfeld is linked to Stony Brook Children's Service.
Does Dr. Ryan Steven Hirschfeld accept Medicare?
Yes. CMS data shows Dr. Hirschfeld billed Medicare for 130 services in 2021.
What services does Dr. Ryan Steven Hirschfeld bill to Medicare?
In 2021, Dr. Hirschfeld's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and lab and pathology test (87426).
Show 3 more questionsShow fewer questions
Where did Dr. Ryan Steven Hirschfeld go to medical school?
Dr. Hirschfeld graduated from UMass Chan Medical School in 2012.
What drugs does Dr. Ryan Steven Hirschfeld prescribe most?
In 2021 Medicare Part D data, Dr. Hirschfeld's most prescribed drugs by claims were Fluticasone Propionate, Prednisone and Ibuprofen.
How long has Dr. Ryan Steven Hirschfeld been practicing?
Dr. Hirschfeld graduated from medical school in 2012, 14 years ago.
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