Mark Chai, M.D.
NPI 1912947193 · Physical Medicine & Rehabilitation Physician · Camden, NJ
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Chai, M.D. is a Physical Medicine & Rehabilitation Physician provider in Camden, NJ (NPI 1912947193).
Provider details
- NPI number
- 1912947193
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD043343L (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
20 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
616 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 225 | $54 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 181 | $143 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 90 | $90 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 42 | $86 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $102 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 63 | 14 |
| Baclofen | 56 | 15 |
| Pregabalin | 37 | — |
| Tizanidine Hcl | 33 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 32 | — |
| Cyclobenzaprine Hcl | 14 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2023-01-13
- Certified
- 2023-01-11
Frequently asked questions
- What is Mark Chai's NPI number?
- Mark Chai's National Provider Identifier (NPI) is 1912947193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Chai's specialty?
- Mark Chai is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Chai located?
- Mark Chai's practice location on file with NPPES is 101 Haddon Ave, Camden, NJ 08103-1468.
- What is Mark Chai's phone number?
- The practice phone number listed in the NPPES registry for Mark Chai is (856) 342-2040.
- Does Mark Chai accept Medicare?
- Mark Chai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Chai's NPI active?
- Yes — Mark Chai's NPI (1912947193) is active in the NPPES registry as of the last update on 2023-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.