Dr. Karen Nielsen, DO
- Medicare services, 2024
- 384
- Medicare patients, 2024
- 16
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 155 W 19th St, New York, NY 10011
- Practice phone
- Call (212) 929-2629
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chelsea Village Medical
New York, New York
Find Dr. Nielsen'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. Karen Nielsen is a general practice physician in New York, New York
Dr. Nielsen practices at Chelsea Village Medical in New York, New York.
Dr. Nielsen's NPI, 1568651198, was assigned on October 19, 2007. Dr. Nielsen graduated from Michigan State University College of Osteopathic Medicine in 2004. Dr. Nielsen holds New York license 248989.
- NPI
- 1568651198NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890810139
- NPI enumeration date
- October 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 929-2629
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen Nielsen practices at Chelsea Village Medical in New York, New York
Dr. Nielsen's primary practice is Chelsea Village Medical, at 155 W 19th St, New York, NY 10011 in New York County. The practice phone is (212) 929-2629.
- Chelsea Village Medical155 W 19th St, New York, NY 10011 · New York CountyPhone(212) 929-2629
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karen Nielsen is affiliated with 2 sites of care and 1 medical group
Dr. Nielsen's primary practice is Chelsea Village Medical in New York, New York. Dmand AI also links Dr. Nielsen to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Karen Nielsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nielsen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chelsea Village Medical | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen Nielsen is one of 397 general practice physicians in New York
General practice is Dr. Nielsen's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Nielsen is licensed in New York.
Specialties and state licenses
- General practice, New YorkPrimary
General practice physicians near Dr. Nielsen
Counts of general practice 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. Karen Nielsen billed Medicare for 384 services in 2024
CMS data shows 384 Medicare services from Dr. Nielsen across 2 procedure codes in 2024, for 16 Medicare patients. Medicare paid $44,002 for them. Every service was in an office.
Dr. Nielsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1542024: 19426%
- Tests and treatments
- 2023: 1362024: 19040%
Dr. Nielsen compared with the New York median for general practice physicians, 2024
- Dr. Nielsen
- New York median
- Medicare services
- 384vs 3568% above
- Medicare patients
- 16vs 14089% below
Medians across 362 general practice physicians in New York with Dmand AI profiles that report each measure.
Dr. Nielsen'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.
Need commercial claims for Dr. Nielsen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nielsen and other general practice physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen Nielsen treated 16 Medicare patients in 2024, average age 72
CMS counts 16 Medicare patients who saw Dr. Nielsen in 2024. 75% of them have high cholesterol. Their average risk score is 0.67, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nielsen's median patient age at 71, with 45% women.
Chronic conditions among Dr. Nielsen's Medicare patients, 2024
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nielsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women45%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Karen Nielsen takes part in Medicare
Dr. Nielsen 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. Karen Nielsen graduated from Michigan State University College of Osteopathic Medicine
Dr. Nielsen graduated from Michigan State University College of Osteopathic Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen Nielsen'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Karen Nielsen
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. Karen Nielsen's NPI number?
Dr. Karen Nielsen's NPI number is 1568651198. It was assigned on October 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen Nielsen?
Dr. Karen Nielsen is a general practice physician in New York, New York. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Karen Nielsen practice?
Dr. Nielsen practices at 155 W 19th St, New York, NY 10011. Dr. Nielsen's primary practice is Chelsea Village Medical in New York, New York. Dmand AI also links Dr. Nielsen to 1 group practice or clinic and 1 medical group.
What is Dr. Karen Nielsen's office phone number?
The practice phone on file for Dr. Nielsen is (212) 929-2629.
What is Dr. Karen Nielsen's medical license number?
Dr. Nielsen holds New York license 248989.
Does Dr. Karen Nielsen accept Medicare?
Yes. CMS data shows Dr. Nielsen billed Medicare for 384 services in 2024, and Dr. Nielsen accepts Medicare assignment.
How many Medicare patients does Dr. Karen Nielsen see?
CMS counts 16 Medicare patients who saw Dr. Nielsen in 2024, with an average age of 72.
What services does Dr. Karen Nielsen bill to Medicare?
In 2024, Dr. Nielsen's most billed Medicare services were office visit, established patient (99215) and medical service (98929).
Where did Dr. Karen Nielsen go to medical school?
Dr. Nielsen graduated from Michigan State University College of Osteopathic Medicine in 2004.
How long has Dr. Karen Nielsen been practicing?
Dr. Nielsen graduated from medical school in 2004, 22 years ago.
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