Jennifer Hartzell Calnan, OD
Pediatric Optometrist · Chelmsford, MA
Jennifer Hartzell Calnan, OD is a pediatric optometrist with a practice address in Chelmsford, Massachusetts, and NPI 1508076027, issued on May 23, 2007. Check the license (Massachusetts 4594, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jennifer Hartzell Calnan
- Credential
- OD
- Primary taxonomy
- Pediatric Optometrist 152WP0200X
- License number
- 4594 MA
Self-reported in NPPES; status is on the state search - Practice location
- 19 Village SQ, Chelmsford, MA 01824
- Phone
- (978) 703-0250
- Enumerated
- May 23, 2007
- Record last updated
- Feb 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080121000086); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 2006
- Entity
- Type 1 · individual
Also registered at 19 Village SQ
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Glen Bolliger, MDOphthalmology Physician1568455897
- Bruce Bunker, O.D.Optometrist1750386835
- John Constantine, M.D.Ophthalmology Physician1437157765
- Melissa Donald, O.D.Optometrist1750674958
- Hannah Donovan, ODOptometrist1750066320
- Cecily Hamill, MD, PHDOphthalmology Physician1265676928
Verify Jennifer Hartzell Calnan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 4594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average pediatric optometrist in 2024
111 Medicare Part D claims for 52 beneficiaries, against an average of 109 among the 76 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost34 claims
- Tobramycin-Dexamethasone12 claims
- Restasis11 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: $350.02
6 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc. The 121 providers of this specialty with any payment received $408.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Massachusetts Eye Associates PCChelmsford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pediatric Optometrist providers in Massachusetts
There are 17 pediatric optometrist records in Massachusetts.
Other pediatric optometrist records in Massachusetts
- John Abbondanza, ODSouthborough, MA1902992886
- Anna Maria Baglieri, O.DBoston, MA1992811509
- Anh Bui, ODBoston, MA1891363644
- Lauren Butler, ODBoston, MA1548990534
- Kimberley Chan, O.D.Boston, MA1104908458
- John Child, O.D.Falmouth, MA1346301033
- Anthony Foti, ODWilmington, MA1255317830
- Jacqueline Kenney, ODBeverly, MA1033809884
- Anna Kirillova, OD, MSBoston, MA1740699016
- Caroline Marhefka, ODBoston, MA1912694811
Common questions
What is Jennifer Hartzell Calnan, OD's NPI number?
Jennifer Hartzell Calnan, OD's National Provider Identifier (NPI) is 1508076027, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Hartzell Calnan, OD located?
The NPPES record lists a practice address at 19 Village SQ, Chelmsford, MA, 01824. Phone: (978) 703-0250. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Hartzell Calnan, OD's license?
NPPES lists Massachusetts license number 4594, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Jennifer Hartzell Calnan, OD prescribe under Medicare Part D?
In 2024, Jennifer Hartzell Calnan, OD had 111 Medicare Part D claims for 52 beneficiaries; the average among pediatric optometrist 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.