Mara Isser Sax, D.O.
NPI 1194776898 · Physical Medicine & Rehabilitation Physician · Denver, CO
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mara Isser Sax, D.O. is a Physical Medicine & Rehabilitation Physician provider in Denver, CO (NPI 1194776898).
Provider details
- NPI number
- 1194776898
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 5101014247 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,223 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 252 | $129 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 114 | $304 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 95 | $111 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 73 | $92 |
| Injection of Lower Or Sacral Spine Facet Joint Using Imaging Guidance, Single Level64493 | 69 | $229 |
| Injection of Lower Or Sacral Spine Facet Joint Using Imaging Guidance, Second Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 226 | 101 |
| Pregabalin | 70 | 28 |
| Tramadol Hcl | 63 | 32 |
| Meloxicam | 56 | 30 |
| Tizanidine Hcl | 47 | 21 |
| Methylprednisolone | 27 | 25 |
| Methocarbamol | 24 | 15 |
| Lidocaine | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$612 across 27 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
Additional practice locations (1)
- 12605 E 16th AveAurora, CO 80045-2545Phone: (720) 848-0000
Registry dates
- Enumerated
- 2006-05-15
- Last updated
- 2020-06-19
- Certified
- 2020-06-19
Frequently asked questions
- What is Mara Isser Sax's NPI number?
- Mara Isser Sax's National Provider Identifier (NPI) is 1194776898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mara Isser Sax's specialty?
- Mara Isser Sax is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Mara Isser Sax located?
- Mara Isser Sax's practice location on file with NPPES is 100 Cook Street, Denver, CO 80206.
- What is Mara Isser Sax's phone number?
- The practice phone number listed in the NPPES registry for Mara Isser Sax is (720) 516-9419.
- Does Mara Isser Sax accept Medicare?
- Mara Isser Sax is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mara Isser Sax's NPI active?
- Yes — Mara Isser Sax's NPI (1194776898) is active in the NPPES registry as of the last update on 2020-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.