Daniel Tseytlin, DO
Rheumatology Physician · Nashua, NH
Daniel Tseytlin, DO is a rheumatology physician with a practice address in Nashua, New Hampshire, and NPI 1629413398, issued on May 7, 2013. Check the license (New Hampshire 20427, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Daniel Tseytlin
- Credential
- DO
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 20427 NH
OT015100 PA
Self-reported in NPPES; status is on the state search - Practice location
- 168 Kinsley St Ste 10, Nashua, NH 03060
- Phone
- (603) 578-9363
- Enumerated
- May 7, 2013
- Record last updated
- Jun 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (603) 578-9539
- Medicare enrollment
- Enrolled (PECOS I20200622000449); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 58 in New Hampshire → Look up another NPI →
Verify Daniel Tseytlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 20427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,506 Medicare Part D claims for 283 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Methotrexate208 claims
- Prednisone199 claims
- Allopurinol181 claims
- Hydroxychloroquine Sulfate154 claims
- Duloxetine Hcl85 claims
- Colchicine69 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 90.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- St. Joseph Hospital OF Nashua NHNashua, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Tseytlin among 58 rheumatology physician records in New Hampshire
Daniel Tseytlin, DO is one of 58 rheumatology physician records with a practice address in New Hampshire. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 83% of them.
- NPI issued2013 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2013 · median 2001 among the 39 with a school on file
- Record last updated2020 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in New Hampshire
There are 58 rheumatology physician records in New Hampshire.
All 58 in New Hampshire → Every provider in Nashua → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- John Gorman, M.D.Nashua, NH 030601588670368
- Kalyani Govindaraju, MDNashua, NH 030601508952243
- Lyudmila Kirillova, M.D.Nashua, NH 030601861683468
- Rui ZhangNashua, NH 030601588008452
- May Aldaabil, M.DNashua, NH 030631306243910
- Andrea Schneebaum, MDDerry, NH 030381205930872
- Naureen Mirza, M.D.Manchester, NH 031011386690535
- Aparna Raju Padmaraju, M.DManchester, NH 031011245542026
Common questions
What is Daniel Tseytlin, DO's NPI number?
Daniel Tseytlin, DO's National Provider Identifier (NPI) is 1629413398, issued on May 7, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Tseytlin, DO located?
The NPPES record lists a practice address at 168 Kinsley St Ste 10, Nashua, NH, 03060. Phone: (603) 578-9363. Providers update this record themselves, so call before visiting.
How can I verify Daniel Tseytlin, DO's license?
NPPES lists New Hampshire license number 20427, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel Tseytlin, DO prescribe under Medicare Part D?
In 2024, Daniel Tseytlin, DO had 1,506 Medicare Part D claims for 283 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Daniel Tseytlin, DO's MIPS final score?
The 2023 MIPS final score is 90.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.