Theodore S. Ingrassia, M.D.
Pulmonary Disease Physician · Rockford, IL
Theodore S. Ingrassia, M.D. is a pulmonary disease physician with a practice address in Rockford, Illinois, and NPI 1437263662, issued on Aug 17, 2006. Check the license (Illinois 036 083892, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Theodore S. Ingrassia
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 036 083892 IL
Self-reported in NPPES; status is on the state search - Practice location
- 535 Roxbury RD, Rockford, IL 61107
- Phone
- (815) 397-7212
- Enumerated
- Aug 17, 2006
- Record last updated
- May 4, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (815) 397-2539
- Medicaid ID
- 036 083892 IL
- Medicare enrollment
- Enrolled (PECOS I20070618000337); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 617 in Illinois → Look up another NPI →
Also registered at 535 Roxbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christie Gesin, APNNurse Practitioner1740709336
- Nadeem Hanif, M.D.Pulmonary Disease Physician1972617181
- Meredydd Harper, APRN,BCAcute Care Nurse Practitioner1245300284
- Sean Kenney, MSN, ACNPC-AGGerontology Nurse Practitioner1760264980
- Fredric Kullberg, M.D.Pulmonary Disease Physician1912010273
- Ashley Liou, DOPulmonary Disease Physician1023402229
Verify Theodore S. Ingrassia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036 083892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average pulmonary disease physician in 2024
1,563 Medicare Part D claims for 249 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Trelegy Ellipta263 claims
- Albuterol Sulfate Hfa190 claims
- Breo Ellipta145 claims
- Montelukast Sodium88 claims
- Anoro Ellipta75 claims
- Ipratropium Bromide67 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: $28.36
2 payments; by number, the most common kind was food and beverage; the largest payer was Philips North America LLC. The 8,806 providers of this specialty with any payment received $5,159.88 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
- Osf Multi-Specialty GroupRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theodore S. Ingrassia among 617 pulmonary disease physician records in Illinois
Theodore S. Ingrassia, M.D. is one of 617 pulmonary disease physician records with a practice address in Illinois. 85% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1982 · median 2005 among the 444 with a school on file
- Record last updated2016 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Illinois
There are 617 pulmonary disease physician records in Illinois.
All 617 in Illinois → Every provider in Rockford → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Nadeem Hanif, M.D.Rockford, IL 611071972617181
- Fredric Kullberg, M.D.Rockford, IL 611071912010273
- Ashley Liou, DORockford, IL 611071023402229
- Suraj Bopanna, MD, MRCPRockford, IL 611041740433291
- Mark Jacob, M.D.Rockford, IL 611041063688497
- Tabassum Nafsi, MDRockford, IL 611041396931069
- Michael Puruckherr, MDRockford, IL 611041487684353
- Mohamed Zeater, MDRockford, IL 611041285690958
Common questions
What is Theodore S. Ingrassia, M.D.'s NPI number?
Theodore S. Ingrassia, M.D.'s National Provider Identifier (NPI) is 1437263662, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theodore S. Ingrassia, M.D. located?
The NPPES record lists a practice address at 535 Roxbury RD, Rockford, IL, 61107. Phone: (815) 397-7212. Providers update this record themselves, so call before visiting.
How can I verify Theodore S. Ingrassia, M.D.'s license?
NPPES lists Illinois license number 036 083892, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Theodore S. Ingrassia, M.D. prescribe under Medicare Part D?
In 2024, Theodore S. Ingrassia, M.D. had 1,563 Medicare Part D claims for 249 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.