Ian M. Rosenthal, MD
Dermatopathology Physician · Portsmouth, NH
Ian M. Rosenthal, MD is a dermatopathology physician with a practice address in Portsmouth, New Hampshire, and NPI 1316218704, issued on Jan 18, 2012. Check the license (New Hampshire 23711, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ian M. Rosenthal
- Credential
- MD
- Primary taxonomy
- Dermatopathology Physician 207ND0900X
- License numbers
- 23711 NH
35.128425 OH
Self-reported in NPPES; status is on the state search - Practice location
- 111 New Hampshire Ave Ste 3, Portsmouth, NH 03801
- Phone
- (603) 988-0951
- Enumerated
- Jan 18, 2012
- Record last updated
- Jan 31, 2024
- Fax
- (603) 441-3722
- Medicare enrollment
- Enrolled (PECOS I20230411001368); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2012
- Entity
- Type 1 · individual
2 nearest dermatopathology physician records → All 3 in New Hampshire → Look up another NPI →
Also registered at 111 New Hampshire Ave Ste 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- April Deng, MDAnatomic Pathology & Clinical Pathology Physician1861430860
- Joshua Goldsmith, DOAnatomic Pathology & Clinical Pathology Physician1558868216
- Karen Wu, M.D.Dermatopathology (Pathology) Physician1245441310
Verify Ian M. Rosenthal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 23711Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Optima Dermatology LLCExeter, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatopathology Physician providers in New Hampshire
There are 3 dermatopathology physician records in New Hampshire.
All 3 in New Hampshire → Every provider in Portsmouth → Dermatopathology Physician nationwide →
The 2 dermatopathology physician records with the nearest ZIP codes
- Stephen Brady, M.D.Portsmouth, NH 038011194820662
- David GrandLebanon, NH 037561437738069
Common questions
What is Ian M. Rosenthal, MD's NPI number?
Ian M. Rosenthal, MD's National Provider Identifier (NPI) is 1316218704, issued on Jan 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ian M. Rosenthal, MD located?
The NPPES record lists a practice address at 111 New Hampshire Ave Ste 3, Portsmouth, NH, 03801. Phone: (603) 988-0951. Providers update this record themselves, so call before visiting.
How can I verify Ian M. Rosenthal, MD's license?
NPPES lists New Hampshire license number 23711, 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.
What is Ian M. Rosenthal, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.