Ian D. Bier, ND., LAC, PHD
Naturopath · Portsmouth, NH
Ian D. Bier, ND., LAC, PHD is a naturopath with a practice address in Portsmouth, New Hampshire, and NPI 1285959627, issued on Mar 29, 2010. Check the license (New Hampshire 14, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ian D. Bier
- Credential
- ND., LAC, PHD
- Primary taxonomy
- Naturopath 175F00000X
- License numbers
- 14 NH
ACP 032 NH
Self-reported in NPPES; status is on the state search - Practice location
- 155 Borthwick Ave, Portsmouth, NH 03801
- Phone
- (603) 610-7778
- Enumerated
- Mar 29, 2010
- Record last updated
- Mar 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (603) 610-7787
- Entity
- Type 1 · individual
8 nearest naturopath records → All 90 in New Hampshire → Look up another NPI →
Also registered at 155 Borthwick Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Molly Chartier, M.D.Dermatology Physician1922245471
- Daniel Davies, DOInternal Medicine Physician1083683833
- Amira Diamond-Bier, NDNaturopath1144059486
Verify Ian D. Bier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 14Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average naturopath in 2024
22 Medicare Part D claims, against an average of 109 among the 1,866 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Armour Thyroid16 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.
Ian D. Bier among 90 naturopath records in New Hampshire
Ian D. Bier, ND., LAC, PHD is one of 90 naturopath records with a practice address in New Hampshire. 43% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 39% of them.
- NPI issued2010 · 39% of these records are older, 56% newer
- In a Medicare fileYes · 43% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2010 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175F00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 naturopath records list a practice address in Portsmouth
They are 21 of the 1,860 NPPES records with a practice address in Portsmouth, and 90 naturopath records in New Hampshire.
All 90 in New Hampshire → Every provider in Portsmouth → Naturopath nationwide →
The 8 naturopath records with the nearest ZIP codes
- Jacob Aguiar, NDPortsmouth, NH 038011003213943
- Christine Ambrose, NDPortsmouth, NH 038011942631015
- Rachel Anderson, N.D.Portsmouth, NH 038011215172762
- Margaux French, NDPortsmouth, NH 038011275778474
- Anne Frances Hardy, ND, LACPortsmouth, NH 038011629370036
- Leon Hecht, N.D.Portsmouth, NH 038011063564508
- Anna Johnson, NDPortsmouth, NH 038011720680861
- Angela Lambert, ND, LACPortsmouth, NH 038011972639235
Common questions
What is Ian D. Bier, ND., LAC, PHD's NPI number?
Ian D. Bier, ND., LAC, PHD's National Provider Identifier (NPI) is 1285959627, issued on Mar 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Ian D. Bier, ND., LAC, PHD located?
The NPPES record lists a practice address at 155 Borthwick Ave, Portsmouth, NH, 03801. Phone: (603) 610-7778. Providers update this record themselves, so call before visiting.
How can I verify Ian D. Bier, ND., LAC, PHD's license?
NPPES lists New Hampshire license number 14, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Ian D. Bier, ND., LAC, PHD prescribe under Medicare Part D?
In 2024, Ian D. Bier, ND., LAC, PHD had 22 Medicare Part D claims; the average among naturopath prescribers was 109. Part D covers Medicare prescriptions only.
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.