Mary Dryden, PHD
NPI 1811593684 · Psychologist · Denver, CO
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Dryden, PHD is a Psychologist provider in Denver, CO (NPI 1811593684).
Provider details
- NPI number
- 1811593684
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 36619 (TX)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
258 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) |
|---|---|---|
| Evaluation of Psychological Test, Each Additional Hour96131 | 76 | $85 |
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 47 | $37 |
| Psychiatric Diagnostic Evaluation90791 | 45 | $171 |
| Evaluation of Psychological Test, First Hour96130 | 45 | $119 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 45 | $41 |
Typical Medicare-allowed amounts for these services range $37–$171 (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.
Practice location
Mailing address
Additional practice locations (2)
- 4925 Greenville Ave Ste 1050Dallas, TX 75206-4084Phone: (214) 918-1999Fax: (972) 850-9452
- 8390 Lyndon B Johnson Fwy Ste 575Dallas, TX 75243-1188Phone: (214) 918-1999
Registry dates
- Enumerated
- 2020-12-08
- Last updated
- 2025-10-20
- Certified
- 2025-10-20
Frequently asked questions
- What is Mary Dryden's NPI number?
- Mary Dryden's National Provider Identifier (NPI) is 1811593684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Dryden's specialty?
- Mary Dryden is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Dryden located?
- Mary Dryden's practice location on file with NPPES is 5210 E 6th Avenue Pkwy, Denver, CO 80220-5208.
- What is Mary Dryden's phone number?
- The practice phone number listed in the NPPES registry for Mary Dryden is (817) 229-5123.
- Does Mary Dryden accept Medicare?
- Mary Dryden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Dryden's NPI active?
- Yes — Mary Dryden's NPI (1811593684) is active in the NPPES registry as of the last update on 2025-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.