Doctor profile · Federal record
Dr. Frederick Fellin, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Philadelphia, PA
- NPI 1679684476
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
925 Chestnut Street, Suite 320A
Philadelphia, PA 191075109
(215) 955-8874
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 15, 2013
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Pennsylvania #MD025210E
- Medicaid (2)
- PA #007005116 · NJ #0311955
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679684476. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
676
Distinct HCPCS
10
Medicare allowed
$67,877
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 287 | 142 | $101 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 77 | 65 | $67 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 77 | 40 | $100 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 74 | 42 | $148 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 64 | 43 | $81 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 26 | 26 | $138 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 17 | $68 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 19 | 19 | $51 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 17 | 12 | $122 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 15 | $134 |
In context: peer comparison
Among 59 peers in this city , average services per provider: 829. This provider delivers 0.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
567
Patients
111
Total drug cost
$2,567,275
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 143 | 50 | $3,771 |
| Ibrance (Palbociclib) | Brand | 87 | 13 | $1,416,897 |
| Letrozole | Generic | 39 | 15 | $1,361 |
| Tamoxifen Citrate | Generic | 38 | 15 | $1,526 |
| Ondansetron Hcl | Generic | 36 | 18 | $194 |
| Tagrisso (Osimertinib Mesylate) | Brand | 36 | 0 | $579,694 |
| Exemestane | Generic | 28 | 0 | $7,180 |
| Hydroxyurea | Generic | 27 | 0 | $2,501 |
| Imbruvica (Ibrutinib) | Brand | 24 | 0 | $407,483 |
| Eliquis (Apixaban) | Brand | 23 | 0 | $27,884 |
Hospital affiliations
Frequently asked questions
What is Dr. Frederick Fellin's medical specialty?
Dr. Frederick Fellin practices Hematology & Oncology Physician in Philadelphia, PA.
Where does Dr. Frederick Fellin practice?
Dr. Frederick Fellin practices at 925 Chestnut Street, Philadelphia, PA 191075109. Office phone: 2159558874.
What is Dr. Frederick Fellin's NPI?
Dr. Frederick Fellin's National Provider Identifier (NPI) is 1679684476, issued by NPPES.
Does Dr. Frederick Fellin accept Medicare assignment?
Yes. Dr. Frederick Fellin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Frederick Fellin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.