DR. MARK D HAUPTMAN (M.D.) – Internal Medicine Physician, NPI 1801873427
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. MARK D HAUPTMAN (M.D.)
26800 Crown Valley Pkwy
SUITE 305
Mission Viejo, CA 926916384
Phone: (949) 364-6000
Fax: (949) 364-3213
Type: Location
26522, La Alameda, Mission Viejo, Orange County, California, 92691, United States
SUITE 120
MISSION VIEJO, CA 926916330
Phone: (949) 282-1671
Fax: (949) 367-0518
Type: Mailing
26800, Crown Valley Parkway, Mission Viejo, Orange County, California, 92691, United States
SUITE 305
MISSION VIEJO, CA 926916384
Phone: (949) 364-6000
Fax: (949) 364-3213
Type: Location
PO BOX 35380
SUITE 120
LAS VEGAS, NV 891335380
Phone:
Type: Mailing
26991 CROWN VALLEY PKWY STE 100
MISSION VIEJO, CA 926916511
Phone: (949) 582-5430
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-11-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20091102000631 | I | Internal Medicine | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 51 | 29 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 18 | 18 | $0 |
| 82270 | Stool analysis for blood to screen for colon tumors | 12 | 12 | $0 |
Insurance plans in this area (ZIP 92691)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CA | 83036 | Hemoglobin A1C level | 87 | 51 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| - | CA | |
| - | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| Physical Therapist In Private Practice | NV | |
| Internal Medicine | CA | |
| - | CA | |
| Internal Medicine, Geriatric Medicine | CA |
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