Diana Elizabeth Farrell-Grossman, D.O.
Internal Medicine Physician · Bethlehem, PA
Diana Elizabeth Farrell-Grossman, D.O. is an internal medicine physician with a practice address in Bethlehem, Pennsylvania, and NPI 1821359688, issued on Jun 7, 2012. Check the license (Pennsylvania OS019836, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Diana Elizabeth Farrell-Grossman
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- OS019836 PA
OS11692 FL
Self-reported in NPPES; status is on the state search - Practice location
- 325 W Broad St, Bethlehem, PA 18018
- Phone
- (484) 626-9200
- Enumerated
- Jun 7, 2012
- Record last updated
- Apr 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (610) 867-8499
- Medicare enrollment
- Enrolled (PECOS I20190503001233); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 325 W Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ranjini Chugh, M.D.Pediatrics Physician1275624769
- Maria Dejoseph, M.D.Internal Medicine Physician1326108259
- Kirsty Demille, CRNPWomen's Health Nurse Practitioner1265197271
- Reena Kanabar, M.D.Obstetrics & Gynecology Physician1811150568
- Shelley Martinez, CRNPFamily Nurse Practitioner1740639855
Verify Diana Elizabeth Farrell-Grossman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS019836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average internal medicine physician in 2024
3,655 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Rosuvastatin Calcium209 claims
- Levothyroxine Sodium207 claims
- Atorvastatin Calcium195 claims
- Lisinopril190 claims
- Amlodipine Besylate176 claims
- Omeprazole131 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: $104.12
1 payment: food and beverage; the largest payer was Myriad Genetic Laboratories, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Lehigh Valley Physician GroupBethlehem, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Elizabeth Farrell-Grossman among 7,300 internal medicine physician records in Pennsylvania
Diana Elizabeth Farrell-Grossman, D.O. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.
- NPI issued2012 · 55% of these records are older, 43% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2009 · median 2008 among the 4,208 with a school on file
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
157 internal medicine physician records list a practice address in Bethlehem
They are 157 of the 4,797 NPPES records with a practice address in Bethlehem, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Bethlehem → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Matthew Bartelt, D.O.Bethlehem, PA 180181356340632
- James Cowan, M.D.Bethlehem, PA 180181548563661
- Nishi Dedania, MDBethlehem, PA 180181952728966
- Maria Dejoseph, M.D.Bethlehem, PA 180181326108259
- Charles Digby, D.O.Bethlehem, PA 180181629208095
- David Hoffman, M.D.Bethlehem, PA 180181194782078
- Mark Kender, MDBethlehem, PA 180181447289087
- Horace Olewiler, MDBethlehem, PA 180181063463057
Common questions
What is Diana Elizabeth Farrell-Grossman, D.O.'s NPI number?
Diana Elizabeth Farrell-Grossman, D.O.'s National Provider Identifier (NPI) is 1821359688, issued on Jun 7, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Diana Elizabeth Farrell-Grossman, D.O. located?
The NPPES record lists a practice address at 325 W Broad St, Bethlehem, PA, 18018. Phone: (484) 626-9200. Providers update this record themselves, so call before visiting.
How can I verify Diana Elizabeth Farrell-Grossman, D.O.'s license?
NPPES lists Pennsylvania license number OS019836, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diana Elizabeth Farrell-Grossman, D.O. prescribe under Medicare Part D?
In 2024, Diana Elizabeth Farrell-Grossman, D.O. had 3,655 Medicare Part D claims for 259 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.