Karla Christo, M.D.
Family Medicine Physician · Fitchburg, MA
Karla Christo, M.D. is a family medicine physician with a practice address in Fitchburg, Massachusetts, and NPI 1689864167, issued on Jul 31, 2007. Check the license (Massachusetts 232436, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Karla Christo
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 232436 MA
Self-reported in NPPES; status is on the state search - Practice location
- 155 Franklin Road, Fitchburg, MA 01420
- Phone
- (978) 345-1919
- Enumerated
- Jul 31, 2007
- Record last updated
- Dec 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (978) 342-6240
- Medicare enrollment
- Enrolled (PECOS I20101020001583); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Verify Karla Christo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 232436Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average family medicine physician in 2024
6,777 Medicare Part D claims for 418 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 72 claims were for opioids.
Most prescribed
- Atorvastatin Calcium465 claims
- Lisinopril380 claims
- Amlodipine Besylate302 claims
- Losartan Potassium219 claims
- Omeprazole210 claims
- Levothyroxine Sodium186 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.
Bills Medicare through one group practice
- Umass Memorial Medical Group IncFitchburg, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karla Christo among 2,265 family medicine physician records in Massachusetts
Karla Christo, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1994 · median 2006 among the 1,529 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 family medicine physician records list a practice address in Fitchburg
They are 27 of the 1,119 NPPES records with a practice address in Fitchburg, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Fitchburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Piamarie Ballarin-Feldman, M.D.Fitchburg, MA 014201821058025
- Cheryl Divito, D.O.Fitchburg, MA 014201952368193
- Zbigniew Dombek, M.D.Fitchburg, MA 014201316907249
- James Fluet, D.O.Fitchburg, MA 014201841257714
- Beth Mazyck, M.D.Fitchburg, MA 014201467411777
- Peter McConarty, MDFitchburg, MA 014201639192149
- Diederik Meursing, M.D.Fitchburg, MA 014201073664033
- Michele Pugnaire, M.D.Fitchburg, MA 014201053339747
Common questions
What is Karla Christo, M.D.'s NPI number?
Karla Christo, M.D.'s National Provider Identifier (NPI) is 1689864167, issued on Jul 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karla Christo, M.D. located?
The NPPES record lists a practice address at 155 Franklin Road, Fitchburg, MA, 01420. Phone: (978) 345-1919. Providers update this record themselves, so call before visiting.
How can I verify Karla Christo, M.D.'s license?
NPPES lists Massachusetts license number 232436, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karla Christo, M.D. prescribe under Medicare Part D?
In 2024, Karla Christo, M.D. had 6,777 Medicare Part D claims for 418 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.