Silvia Gratz, D.O.
NPI 1134161938 · Psychiatry Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Silvia Gratz, D.O. is a Psychiatry Physician provider in Philadelphia, PA (NPI 1134161938).
Provider details
- NPI number
- 1134161938
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- License
- OS005931L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
413 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 394 | $50 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 19 | $82 |
Typical Medicare-allowed amounts for these services range $50–$82 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 38 | 20 |
| Haloperidol | 25 | 12 |
| Olanzapine | 23 | 11 |
| Trazodone Hcl | 21 | — |
| Naltrexone Hcl | 21 | — |
| Omeprazole | 19 | — |
| Risperidone | 18 | 11 |
| Atorvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$261 across 10 records (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
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Silvia Gratz's NPI number?
- Silvia Gratz's National Provider Identifier (NPI) is 1134161938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Silvia Gratz's specialty?
- Silvia Gratz is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Silvia Gratz located?
- Silvia Gratz's practice location on file with NPPES is 4641 Roosevelt Blvd, Philadelphia, PA 19124-2343.
- What is Silvia Gratz's phone number?
- The practice phone number listed in the NPPES registry for Silvia Gratz is (215) 831-4811.
- Does Silvia Gratz accept Medicare?
- Silvia Gratz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Silvia Gratz's NPI active?
- Yes — Silvia Gratz's NPI (1134161938) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.