Gregory Singer, M.D.
NPI 1639185572 · Family Medicine Physician · Fogelsville, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Singer, M.D. is a Family Medicine Physician provider in Fogelsville, PA (NPI 1639185572).
Provider details
- NPI number
- 1639185572
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-064098L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,036 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 236 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 201 | $128 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 180 | $114 |
| Automated Urinalysis Test81003 | 61 | $2 |
| X-Ray of Chest, 2 Views71046 | 59 | $35 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 56 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 69 | 20 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 59 | 57 |
| Prednisone | 57 | 54 |
| Metoprolol Succinate | 44 | 12 |
| Metformin Hclbrand: Metformin Hcl Er | 43 | 11 |
| Losartan Potassium | 36 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2017-01-16
Frequently asked questions
- What is Gregory Singer's NPI number?
- Gregory Singer's National Provider Identifier (NPI) is 1639185572, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Singer's specialty?
- Gregory Singer is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Singer located?
- Gregory Singer's practice location on file with NPPES is 1783 Creek View Dr, Fogelsville, PA 18051-1716.
- What is Gregory Singer's phone number?
- The practice phone number listed in the NPPES registry for Gregory Singer is (610) 285-2173.
- Does Gregory Singer accept Medicare?
- Gregory Singer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Singer's NPI active?
- Yes — Gregory Singer's NPI (1639185572) is active in the NPPES registry as of the last update on 2017-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.