NPPES file of Aug 9, 2026

Ferdinand Karl Engelhart, O.D.

Optometrist · Nashua, NH

Ferdinand Karl Engelhart, O.D. is an optometrist with a practice address in Nashua, New Hampshire, and NPI 1821093915, issued on Jun 16, 2005. Check the license (New Hampshire 0513, as entered in NPPES) with the New Hampshire 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821093915
Name
Ferdinand Karl Engelhart
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
0513 NH
Self-reported in NPPES; status is on the state search
Practice location
5 Coliseum Ave, Nashua, NH 03063
Phone
(603) 882-9800
Enumerated
Jun 16, 2005
Record last updated
Aug 11, 2022
Fax
(603) 882-0556
Medicaid ID
30002186 NH
Medicare enrollment
Enrolled (PECOS I20051019000912); accepts Medicare assignment
Medical or professional school
University Alabama Birmingham - School Of Optometry, 1987
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 5 Coliseum Ave

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

  1. Lauren Baldigo, LMTMassage Therapist1649435454
  2. Faith Birnbaum, M.D.Ophthalmology Physician1972951986
  3. Timothy Blake, M.D.Ophthalmology Physician1891790986
  4. Michelle BroganOther Technician1215213988
  5. John Dagianis, M.D.Ophthalmology Physician1972508026
  6. Sonalee Desai-Bartoli, M.D.Glaucoma Specialist (Ophthalmology) Physician1568418028

Verify Ferdinand Karl Engelhart in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 0513
    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 New Hampshire license search

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77% fewer Medicare Part D claims than the average optometrist in 2024

63 Medicare Part D claims for 49 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. Ferdinand Engelhart63
  2. Specialty average277

Most prescribed

  1. Neomycin-Polymyxin-Dexameth25 claims
  2. Cephalexin11 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 practice group's MIPS final score for 2023 (Medicare payment program): 95.3 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.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%84.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $816.54

23 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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. Ferdinand Engelhart$816.54
  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. Nashua Eye Associates PANashua, NH

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

34 optometrist records list a practice address in Nashua

They are 34 of the 3,140 NPPES records with a practice address in Nashua, and 293 optometrist records in New Hampshire.

Other optometrist records in New Hampshire

  1. Michael Abrams, O.D.Penacook, NH1245321728
  2. Marilynn Acker Ezell, ODJaffrey, NH1194799379
  3. Meredith Alfred Carlson, ODPortsmouth, NH1679353247
  4. Joseph Alger, ODKeene, NH1457467367
  5. Denis Allard, ODManchester, NH1114004363
  6. David Appler, O.D.Hudson, NH1154300499
  7. Koray Arin, ODBedford, NH1568547537
  8. Andrew Armstrong, ODPlymouth, NH1841364650
  9. Dwight Arvidson, O.D.Portsmouth, NH1528125283
  10. Naila Aslam, ODDover, NH1265480958

Common questions

What is Ferdinand Karl Engelhart, O.D.'s NPI number?

Ferdinand Karl Engelhart, O.D.'s National Provider Identifier (NPI) is 1821093915, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ferdinand Karl Engelhart, O.D. located?

The NPPES record lists a practice address at 5 Coliseum Ave, Nashua, NH, 03063. Phone: (603) 882-9800. Providers update this record themselves, so call before visiting.

How can I verify Ferdinand Karl Engelhart, O.D.'s license?

NPPES lists New Hampshire license number 0513, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Ferdinand Karl Engelhart, O.D. prescribe under Medicare Part D?

In 2024, Ferdinand Karl Engelhart, O.D. had 63 Medicare Part D claims for 49 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Ferdinand Karl Engelhart, O.D.'s MIPS final score?

The 2023 MIPS final score is 95.3 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.