Dr. Natan Bar-Chama, MD
- Medicare services, 2019
- 94
- Part D claims, 2024
- 17
- Industry payments
- $77,396
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 635 Madison Avenue 10th Floor, New York, NY 10022
- Practice phone
- Call (212) 756-5777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
RMA East Side, NYC Fertility Clinic
Clinical Lab - Full Service · New York, New York
Find Dr. Bar-Chama'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. Natan Bar-Chama is a urologist in New York, New York
Dr. Bar-Chama practices at RMA East Side, NYC Fertility Clinic in New York, New York.
Dr. Bar-Chama's NPI, 1366426652, was assigned on December 1, 2005. Dr. Bar-Chama holds New York license 176263.
- NPI
- 1366426652NPI Registry (opens in a new tab)
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Practice phone
- (212) 756-5777
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Natan Bar-Chama practices at RMA East Side, NYC Fertility Clinic in New York, New York
Dr. Bar-Chama's primary practice is RMA East Side, NYC Fertility Clinic, at 635 Madison Avenue 10th Floor, New York, NY 10022. The practice phone is (212) 756-5777.
- RMA East Side, NYC Fertility Clinic635 Madison Avenue 10th Floor, New York, NY 10022Phone(212) 756-5777
Source: Dmand AI Affiliation Data
Dr. Natan Bar-Chama is affiliated with 2 sites of care and 1 medical group
Dr. Bar-Chama's primary practice is RMA East Side, NYC Fertility Clinic in New York, New York. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Bar-Chama to 1 more group practice or clinic, named with a free account. Dr. Bar-Chama's employer is on file too: a clinical lab.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Natan Bar-Chama's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bar-Chama practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| RMA East Side, NYC Fertility Clinic | 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. Natan Bar-Chama is one of 919 urologists in New York
Urology is Dr. Bar-Chama's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Bar-Chama is licensed in New York.
Specialties and state licenses
- Urology, New YorkPrimary
Urologists near Dr. Bar-Chama
Counts of urologists 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. Natan Bar-Chama billed Medicare for 94 services in 2019
CMS data shows 94 Medicare services from Dr. Bar-Chama across 4 procedure codes in 2019. Medicare paid $5,332 for them. Every service was in an office.
Dr. Bar-Chama's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 1042019: 6934%
- Tests and treatments
- 2018: 432019: 2542%
Dr. Bar-Chama compared with the New York median for urologists, 2019
- Dr. Bar-Chama
- New York median
- Medicare services
- 94vs 84989% below
- Part D claims
- 15vs 58997% below
Medians across 885 urologists in New York with Dmand AI profiles that report each measure.
Dr. Bar-Chama's most billed Medicare procedure codes, 2019
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. Bar-Chama and other urologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Natan Bar-Chama's patients have a median age of 37
Across all payers, Dmand AI patient panel data puts Dr. Bar-Chama's median patient age at 37, with 1% women.
Dr. Bar-Chama's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women1%
- Men95%
Source: Dmand AI Patient Panel Data
Dr. Natan Bar-Chama wrote 17 Medicare Part D claims in 2024
In 2024, Dr. Bar-Chama wrote 17 Medicare Part D claims. 94% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $35 in total drug cost. In 2022, CMS named 20 claims across 1 drug.
Dr. Bar-Chama's Part D claims by kind of drug, 2024
- Generic16 claims94%
- Brand-name and other1 claims6%
Dr. Bar-Chama's most prescribed drugs by claims, 2024
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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 202024: 1525%
Drugs named by CMS: 1 in 2024, 1 in 2022.
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
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Dr. Natan Bar-Chama received $77,396 in industry payments from 2016 to 2025
CMS Open Payments shows 90 general payments to Dr. Bar-Chama from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 67% of the total. Genentech, Inc. paid the most, $75,585. It also lists 27 research payments totaling $216,210 from 2023 to 2025.
General payments to Dr. Bar-Chama by program year, 2016 to 2025
General payments to Dr. Bar-Chama by kind, 2016 to 2025
- Consulting fees$52,09867%
- Travel and lodging$21,65828%
- Food and beverage$3,6415%
Companies that paid Dr. Bar-Chama the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Natan Bar-Chama'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 Data |
| 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) |
| 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. Natan Bar-Chama
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. Natan Bar-Chama's NPI number?
Dr. Natan Bar-Chama's NPI number is 1366426652. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Natan Bar-Chama?
Dr. Natan Bar-Chama is a urologist in New York, New York. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Natan Bar-Chama practice?
Dr. Bar-Chama practices at 635 Madison Avenue 10th Floor, New York, NY 10022. Dr. Bar-Chama's primary practice is RMA East Side, NYC Fertility Clinic in New York, New York. Dmand AI also links Dr. Bar-Chama to 1 group practice or clinic.
What is Dr. Natan Bar-Chama's office phone number?
The practice phone on file for Dr. Bar-Chama is (212) 756-5777.
What is Dr. Natan Bar-Chama's medical license number?
Dr. Bar-Chama holds New York license 176263.
What medical group is Dr. Natan Bar-Chama part of?
Dr. Bar-Chama is linked to Mount Sinai Institute for Liver Medicine.
Does Dr. Natan Bar-Chama accept Medicare?
Yes. CMS data shows Dr. Bar-Chama billed Medicare for 94 services in 2019.
What services does Dr. Natan Bar-Chama bill to Medicare?
In 2019, Dr. Bar-Chama's most billed Medicare services were office visit, established patient (99212), blood vessel study (93980) and office visit, new patient (99202).
What drugs does Dr. Natan Bar-Chama prescribe most?
In 2024 Medicare Part D data, Dr. Bar-Chama's most prescribed drugs by claims were Anastrozole.
Has Dr. Natan Bar-Chama received payments from drug or device companies?
CMS Open Payments shows $77,396 in general payments to Dr. Bar-Chama from 13 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Natan Bar-Chama been practicing?
Dr. Bar-Chama's NPI was assigned in 2005.
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