Diana Farrell-Grossman, D.O.
NPI 1821359688 · Internal Medicine Physician · Bethlehem, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Farrell-Grossman, D.O. is a Internal Medicine Physician provider in Bethlehem, PA (NPI 1821359688).
Provider details
- NPI number
- 1821359688
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- OS11692 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
362 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $119 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 77 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 70 | $16 |
| Administration of Influenza Virus VaccineG0008 | 29 | $31 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 25 | $83 |
| Admn Sarscov2 Vacc 1 Dose90480 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 209 | 53 |
| Levothyroxine Sodium | 207 | 47 |
| Atorvastatin Calcium | 195 | 59 |
| Lisinopril | 190 | 45 |
| Amlodipine Besylate | 176 | 46 |
| Omeprazole | 131 | 33 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$104 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 21097 Ne 27th CtSuite 110Aventura, FL 33180-1204Phone: (305) 682-8809Fax: (305) 682-8806
- 21097 Ne 27th CtSuite 110Aventura, FL 33180-1204Phone: (305) 682-8809Fax: (305) 682-8806
Registry dates
- Enumerated
- 2012-06-07
- Last updated
- 2019-04-04
Frequently asked questions
- What is Diana Farrell-Grossman's NPI number?
- Diana Farrell-Grossman's National Provider Identifier (NPI) is 1821359688, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Farrell-Grossman's specialty?
- Diana Farrell-Grossman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Farrell-Grossman located?
- Diana Farrell-Grossman's practice location on file with NPPES is 325 W Broad St, Bethlehem, PA 18018.
- What is Diana Farrell-Grossman's phone number?
- The practice phone number listed in the NPPES registry for Diana Farrell-Grossman is (484) 626-9200.
- Does Diana Farrell-Grossman accept Medicare?
- Diana Farrell-Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Farrell-Grossman's NPI active?
- Yes — Diana Farrell-Grossman's NPI (1821359688) is active in the NPPES registry as of the last update on 2019-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.