Melissa Louise Ennen, M.D.
Anesthesiology Physician · Walnut Creek, CA
Melissa Louise Ennen, M.D. is an anesthesiology physician with a practice address in Walnut Creek, California, and NPI 1316134885, issued on Sep 28, 2007. Check the license (California A95735, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Melissa Louise Ennen
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A95735 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2637 Shadelands Dr, Walnut Creek, CA 94598
- Phone
- (925) 932-6330
- Enumerated
- Sep 28, 2007
- Record last updated
- Jun 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (925) 932-0139
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
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Verify Melissa Louise Ennen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95735Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 61.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Melissa Louise Ennen among 7,571 anesthesiology physician records in California
Melissa Louise Ennen, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 anesthesiology physician records list a practice address in Walnut Creek
They are 100 of the 6,170 NPPES records with a practice address in Walnut Creek, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Walnut Creek → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Radhika Annadata, MDWalnut Creek, CA 945981255379624
- Kirkman Beckwith, MDWalnut Creek, CA 945981073551057
- Sarah Cameron, MDWalnut Creek, CA 945981689617243
- Cooper Chao, MDWalnut Creek, CA 945981609818608
- Michele Collier, MDWalnut Creek, CA 945981871537324
- Kurt Dittmar, MDWalnut Creek, CA 945981003858697
- Samir Dzankic, MDWalnut Creek, CA 945981174565741
- Ray Engstrom, MDWalnut Creek, CA 945981669414207
Common questions
What is Melissa Louise Ennen, M.D.'s NPI number?
Melissa Louise Ennen, M.D.'s National Provider Identifier (NPI) is 1316134885, issued on Sep 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Louise Ennen, M.D. located?
The NPPES record lists a practice address at 2637 Shadelands Dr, Walnut Creek, CA, 94598. Phone: (925) 932-6330. Providers update this record themselves, so call before visiting.
How can I verify Melissa Louise Ennen, M.D.'s license?
NPPES lists California license number A95735, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Melissa Louise Ennen, M.D.'s MIPS final score?
The 2023 MIPS final score is 61.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.