Man Shim, M.D.
NPI 1356536007 · Rheumatology Physician · Costa Mesa, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Man Shim, M.D. is a Rheumatology Physician provider in Costa Mesa, CA (NPI 1356536007).
Provider details
- NPI number
- 1356536007
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A97707 (CA)
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 tenure28% of score
18 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
371 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 130 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 89 | $139 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 72 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 57 | $99 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 23 | $179 |
Typical Medicare-allowed amounts for these services range $6–$179 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 271 | 68 |
| Methotrexate Sodiumbrand: Methotrexate | 212 | 65 |
| Hydroxychloroquine Sulfate | 162 | 42 |
| Folic Acid | 69 | 25 |
| Leflunomide | 52 | 17 |
| Etanerceptbrand: Enbrel Sureclick | 48 | — |
| Allopurinol | 42 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-06
- Last updated
- 2020-05-06
- Certified
- 2020-05-06
Frequently asked questions
- What is Man Shim's NPI number?
- Man Shim's National Provider Identifier (NPI) is 1356536007, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Man Shim's specialty?
- Man Shim is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Man Shim located?
- Man Shim's practice location on file with NPPES is 722 Baker St, Costa Mesa, CA 92626-4320.
- What is Man Shim's phone number?
- The practice phone number listed in the NPPES registry for Man Shim is (714) 557-6300.
- Does Man Shim accept Medicare?
- Man Shim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Man Shim's NPI active?
- Yes — Man Shim's NPI (1356536007) is active in the NPPES registry as of the last update on 2020-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.