Nicholas Tzavalas, M.D.
Anesthesiology Physician · Derry, NH
Nicholas Tzavalas, M.D. is an anesthesiology physician with a practice address in Derry, New Hampshire, and NPI 1255319687, issued on Jan 5, 2006. Check the license (New Hampshire 7382, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Nicholas Tzavalas
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 7382 NH
Self-reported in NPPES; status is on the state search - Practice location
- 1 Parkland Dr, Derry, NH 03038
- Phone
- (603) 421-2163
- Enumerated
- Jan 5, 2006
- Record last updated
- Aug 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050406000261); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 304 in New Hampshire → Look up another NPI →
Also registered at 1 Parkland Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alaa Azzouqa, M.D.Hospitalist Physician1386195469
- Summer Bell, APRNFamily Nurse Practitioner1154031292
- Alexis Boyatsis, PA-CPhysician Assistant1376986935
- David Bryson, PA-CMedical Physician Assistant1043236011
- Kyle Cahill, OTR/LOccupational Therapist1720612054
- Daanish Chippa, M.D.Internal Medicine Physician1316324163
Verify Nicholas Tzavalas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 7382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Amoskeag Anesthesia PLLCManchester, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Tzavalas among 304 anesthesiology physician records in New Hampshire
Nicholas Tzavalas, M.D. is one of 304 anesthesiology physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 44% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1979 · median 2005 among the 210 with a school on file
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in New Hampshire
There are 304 anesthesiology physician records in New Hampshire.
All 304 in New Hampshire → Every provider in Derry → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Duval, D.O.Derry, NH 030381265410682
- Julienne Echavarri, MDDerry, NH 030381841510971
- Andrey Lundin, MDDerry, NH 030381275565715
- Victor Veloso, M.D.Hudson, NH 030511295747962
- Douglas Allen, D.O.Nashua, NH 030601528098837
- Chun-Huai Chao, MDNashua, NH 030601598733677
- James Chen, M.D.Nashua, NH 030601437189743
- Vitali Deguzman, M.D.Nashua, NH 030601609802271
Common questions
What is Nicholas Tzavalas, M.D.'s NPI number?
Nicholas Tzavalas, M.D.'s National Provider Identifier (NPI) is 1255319687, issued on Jan 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Tzavalas, M.D. located?
The NPPES record lists a practice address at 1 Parkland Dr, Derry, NH, 03038. Phone: (603) 421-2163. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Tzavalas, M.D.'s license?
NPPES lists New Hampshire license number 7382, 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.
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.