Dr. Peter W. Greenwald, MD
- Medicare services, 2024
- 62
- Medicare patients, 2024
- 92
- Part D claims, 2024
- 119
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 525 East 68th Street, New York, NY 10065
- Practice phone
- Call (212) 746-5454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Greenwald'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. Peter W. Greenwald is an emergency medicine physician in New York, New York
Dr. Greenwald practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital.
Dr. Greenwald's NPI, 1255481164, was assigned on January 11, 2007. Dr. Greenwald graduated from State University of New York Downstate Medical Center in 1997. Dr. Greenwald holds Massachusetts license 209826.
- NPI
- 1255481164NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355335829
- NPI enumeration date
- January 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 746-5454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter W. Greenwald practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York
Dr. Greenwald's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center, at 525 East 68th Street, New York, NY 10065 in New York County. The practice phone is (212) 746-5454.
- NewYork-Presbyterian/Weill Cornell Medical Center525 East 68th Street, New York, NY 10065 · New York CountyPhone(212) 746-5454
Source: Dmand AI Affiliation Data
Dr. Peter W. Greenwald is affiliated with 3 sites of care and 1 medical group
Dr. Greenwald's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital. The medical group on file is Weill Cornell Physicians. Dmand AI also links Dr. Greenwald to 2 more clinical labs, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter W. Greenwald's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenwald practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NewYork-Presbyterian/Weill Cornell Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter W. Greenwald is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Greenwald's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Greenwald is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Greenwald
Counts of emergency medicine physicians 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. Peter W. Greenwald billed Medicare for 62 services in 2024
CMS data shows 62 Medicare services from Dr. Greenwald across 3 procedure codes in 2024, for 92 Medicare patients. Medicare paid $7,996 for them.
Dr. Greenwald's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1392024: 6255%
Where Dr. Greenwald's Medicare services took place, 2024
- In an office1626%
- In a facility4674%
Dr. Greenwald compared with the New York median for emergency medicine physicians, 2024
- Dr. Greenwald
- New York median
- Medicare services
- 62vs 21972% below
- Medicare patients
- 92vs 21657% below
- Part D claims
- 12vs 2959% below
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Greenwald'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter W. Greenwald treated 92 Medicare patients in 2024, average age 73
CMS counts 92 Medicare patients who saw Dr. Greenwald in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high cholesterol, and 66% have high blood pressure. 25% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Greenwald's median patient age at 52, with 57% women.
Dr. Greenwald's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Greenwald's Medicare patients by sex, 2024
- Women5560%
- Men3740%
Chronic conditions among Dr. Greenwald's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis59%
- Mood disorders41%
- Ischemic heart disease39%
- Anxiety37%
- Depression37%
- Diabetes35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greenwald's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women57%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter W. Greenwald wrote 119 Medicare Part D claims in 2024
In 2024, Dr. Greenwald wrote 119 Medicare Part D claims for 55 patients. 81% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $132 in total drug cost.
Dr. Greenwald's Part D claims by kind of drug, 2024
- Generic96 claims81%
- Brand-name and other23 claims19%
Dr. Greenwald'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 Dr. Greenwald's Part D claims, 2024
- Antibiotics13%16 of 119 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Peter W. Greenwald scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Greenwald for performance year 2024, reported through an alternative payment model (APM). Dr. Greenwald accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Greenwald as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Greenwald's MIPS scores, performance year 2024
- 100of 100Final score
- 85.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Peter W. Greenwald graduated from State University of New York Downstate Medical Center
Dr. Greenwald graduated from State University of New York Downstate Medical Center in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter W. Greenwald'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)Clinician Public Reporting: Overall MIPS Performance (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. Peter W. Greenwald
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. Peter W. Greenwald's NPI number?
Dr. Peter W. Greenwald's NPI number is 1255481164. It was assigned on January 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter W. Greenwald?
Dr. Peter W. Greenwald is an emergency medicine physician in New York, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Peter W. Greenwald practice?
Dr. Greenwald practices at 525 East 68th Street, New York, NY 10065. Dr. Greenwald's primary practice is NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York, part of NewYork-Presbyterian Hospital. Dmand AI also links Dr. Greenwald to 2 clinical labs.
What is Dr. Peter W. Greenwald's office phone number?
The practice phone on file for Dr. Greenwald is (212) 746-5454.
What is Dr. Peter W. Greenwald's medical license number?
Dr. Greenwald holds Massachusetts license 209826.
Which hospitals is Dr. Peter W. Greenwald affiliated with?
Dr. Greenwald practices at NewYork-Presbyterian/Weill Cornell Medical Center in New York, New York.
What medical group is Dr. Peter W. Greenwald part of?
Dr. Greenwald is linked to Weill Cornell Physicians.
Does Dr. Peter W. Greenwald accept Medicare?
Yes. CMS data shows Dr. Greenwald billed Medicare for 62 services in 2024, and Dr. Greenwald accepts Medicare assignment.
Does Dr. Peter W. Greenwald offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Greenwald as offering telehealth services.
What is Dr. Peter W. Greenwald's MIPS score?
Dr. Greenwald's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Peter W. Greenwald see?
CMS counts 92 Medicare patients who saw Dr. Greenwald in 2024, with an average age of 73.
What services does Dr. Peter W. Greenwald bill to Medicare?
In 2024, Dr. Greenwald's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and office visit, established patient (99214).
Where did Dr. Peter W. Greenwald go to medical school?
Dr. Greenwald graduated from State University of New York Downstate Medical Center in 1997.
What drugs does Dr. Peter W. Greenwald prescribe most?
In 2023 Medicare Part D data, Dr. Greenwald's most prescribed drugs by claims were Paxlovid (Eua).
How long has Dr. Peter W. Greenwald been practicing?
Dr. Greenwald graduated from medical school in 1997, 29 years ago.
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