NPPES file of Aug 9, 2026

James P. Hahn, D.O

Optometrist · Quincy, MA

James P. Hahn, D.O is an optometrist with a practice address in Quincy, Massachusetts, and NPI 1194881052, issued on Dec 28, 2006. Check the license (Massachusetts 3950, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194881052
Name
James P. Hahn
Credential
D.O
Primary taxonomy
Optometrist 152W00000X
License number
3950 MA
Self-reported in NPPES; status is on the state search
Practice location
1250 Hancock St, Quincy, MA 02169
Phone
(617) 774-0780
Enumerated
Dec 28, 2006
Record last updated
Mar 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(617) 774-0795
Medicaid ID
0313751 MA
Medicare enrollment
Enrolled (PECOS I20080820000232); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1250 Hancock St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Harmony Abejuela, M.D.Psychiatry Physician1316259492
  2. Gigi Anchan, M.D.Pediatrics Physician1346225208
  3. Eric Anderson, M.D.Pediatrics Physician1205812443
  4. Mirza Baig, MDInternal Medicine Physician1780683276
  5. Marianne Balsamo, RNCSAdult Psychiatric/Mental Health Registered Nurse1043261274
  6. Molly Barrett, DDSDentist1407135577

Verify James P. Hahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 3950
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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16% more Medicare Part D claims than the average optometrist in 2024

321 Medicare Part D claims for 129 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. James Hahn321
  2. Specialty average277

Most prescribed

  1. Latanoprost98 claims
  2. Neomycin-Polymyxin-Dexameth32 claims
  3. Dorzolamide-Timolol26 claims
  4. Timolol Maleate26 claims
  5. Ofloxacin23 claims
  6. Brimonidine Tartrate18 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.

Industry payments in 2024: $289.02

3 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Hahn$289.02
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Atrius Health IncNeedham, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James P. Hahn among 1,501 optometrist records in Massachusetts

James P. Hahn, D.O is one of 1,501 optometrist records with a practice address in Massachusetts. 66% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 56% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1994 · median 2008 among the 933 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Massachusetts

There are 1,501 optometrist records in Massachusetts.

The 8 optometrist records with the nearest ZIP codes

  1. Rasha Alawar El Rachmani, O.D.Quincy, MA 021691851624530
  2. Lester Brackley, ODQuincy, MA 021691083651137
  3. Sven-Christian Carlsson, ODQuincy, MA 021691891008397
  4. Kathleen Cleary, O.D.Quincy, MA 021691972586022
  5. Katherine Coffey, ODQuincy, MA 021691679617104
  6. Han Dong, O.D.Quincy, MA 021691912010463
  7. Randy Gunia, O.D.Quincy, MA 021691164526844
  8. Rodney Immerman, O.D.Quincy, MA 021691528055068

Common questions

What is James P. Hahn, D.O's NPI number?

James P. Hahn, D.O's National Provider Identifier (NPI) is 1194881052, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James P. Hahn, D.O located?

The NPPES record lists a practice address at 1250 Hancock St, Quincy, MA, 02169. Phone: (617) 774-0780. Providers update this record themselves, so call before visiting.

How can I verify James P. Hahn, D.O's license?

NPPES lists Massachusetts license number 3950, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does James P. Hahn, D.O prescribe under Medicare Part D?

In 2024, James P. Hahn, D.O had 321 Medicare Part D claims for 129 beneficiaries; the average among optometrist prescribers was 277. 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.