Reid Mergler, MD
NPI 1558820654 · Psychiatry Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Reid Mergler, MD is a Psychiatry Physician provider in Philadelphia, PA (NPI 1558820654).
Provider details
- NPI number
- 1558820654
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD481269 (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
7 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
277 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $103 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 84 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 64 | $79 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 20 | $173 |
Typical Medicare-allowed amounts for these services range $66–$173 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lithium Carbonate | 50 |
| Sertraline Hcl | 40 |
| Aripiprazole | 33 |
| Lamotrigine | 29 |
| Clonazepam | 24 |
| Benztropine Mesylate | 23 |
| Cariprazine Hclbrand: Vraylar | 21 |
| Deutetrabenazinebrand: Austedo | 20 |
| Quetiapine Fumarate | 20 |
| Carbamazepine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-18
- Last updated
- 2024-03-22
- Certified
- 2024-03-22
Frequently asked questions
- What is Reid Mergler's NPI number?
- Reid Mergler's National Provider Identifier (NPI) is 1558820654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Reid Mergler's specialty?
- Reid Mergler is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Reid Mergler located?
- Reid Mergler's practice location on file with NPPES is 3535 Market St Fl 2, Philadelphia, PA 19104-3317.
- What is Reid Mergler's phone number?
- The practice phone number listed in the NPPES registry for Reid Mergler is (215) 746-6701.
- Does Reid Mergler accept Medicare?
- Reid Mergler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Reid Mergler's NPI active?
- Yes — Reid Mergler's NPI (1558820654) is active in the NPPES registry as of the last update on 2024-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.