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No. 10318469
United States Court of Appeals for the Ninth Circuit
Dunning v. Colvin
No. 10318469 · Decided January 22, 2025
No. 10318469·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
January 22, 2025
Citation
No. 10318469
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS JAN 22 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
DIRK DUNNING, No. 24-803
Plaintiff-Appellant, D.C. No. 6:20-cv-1938
v.
MEMORANDUM**
CAROLYN W. COLVIN*, Acting
Commissioner of Social Security,
Defendant-Appellee.
Appeal from the United States District Court
for the District of Oregon
Michael W. Mosman, Presiding
Submitted January 16, 2025***
San Francisco, California
*
Carolyn W. Colvin is substituted for her predecessor Martin O’Malley,
Commissioner of the Social Security Administration, as Acting Commissioner of
the Social Security Administration, pursuant to Federal Rule of Appellate
Procedure 43(c).
**
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
***
The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
Before: H.A. THOMAS, MENDOZA, Circuit Judges, and BOLTON, District
Judge.****
Dirk Dunning appeals the district court’s judgment affirming the
Commissioner of Social Security’s denial of his application for disability insurance
benefits under the Social Security Act. On appeal, Dunning argues the ALJ
improperly discredited (1) certain medical opinions, (2) his testimony, and (3) lay
witness statements. We have jurisdiction under 28 U.S.C. § 1291. “We review a
district court’s judgment de novo and set aside a denial of benefits only if it is not
supported by substantial evidence or is based on legal error.” Smartt v. Kijakazi,
53 F.4th 489, 494 (9th Cir. 2022) (internal quotation marks and citation omitted).
Substantial evidence is “more than a mere scintilla. It means—and means only—
such relevant evidence as a reasonable mind might accept as adequate to support a
conclusion.” Biestek v. Berryhill, 587 U.S. 97, 103 (2019) (cleaned up). We
affirm.
1. To the extent that Dunning argues that the ALJ improperly discounted
the medical opinions of Dr. Pedersen and Dr. Baer, he failed to raise these
arguments before the district court and these arguments are therefore forfeited.
Bastidas v. Chappell, 791 F.3d 1155, 1159 (9th Cir. 2015) (explaining that
****
The Honorable Susan R. Bolton, United States District Judge for the
District of Arizona, sitting by designation.
2
ordinarily “a party who does not complain of an issue in the district court forfeits
his right to review of that issue on appeal”).
Even if we considered these arguments, the ALJ provided specific reasons
for discounting their testimony. The ALJ determines the persuasiveness of medical
opinions. See 20 C.F.R. § 404.1520c(a). The most important factors when
evaluating persuasiveness of medical opinions are supportability and consistency.
Id. The ALJ found that part of Dr. Pedersen’s opinion was not persuasive because
certain opinions, specifically those related to LED light sensitivity, were not
supported by objective evidence and were inconsistent with other evidence in the
record. The ALJ also found that Dr. Baer’s opinion was vague and therefore only
somewhat persuasive. These determinations are supported by substantial evidence.
Substantial evidence also supports the ALJ’s conclusion that Dr. Blattner’s
medical opinion was mostly persuasive. The ALJ discounted Dr. Blattner’s
testimony that Dunning could only stand for ten to fifteen minutes because this
opinion was inconsistent with other evidence. For example, Dunning said he could
walk for one to two miles at a time and occasionally volunteers at political
gatherings where he stands and hold signs. In addition, the ALJ found that the
opinion was not supported by objective medical evidence, as Dr. Blattner
performed no actual testing and appeared to base his opinions solely on Dunning’s
subjective complaints.
3
2. The ALJ provided specific reasons for discounting Dunning’s
testimony. The ALJ considers “all of the available evidence” when “evaluating the
intensity and persistence of [the alleged] symptoms,” including whether the “pain
or other symptoms can reasonably be accepted as consistent with the medical signs
and laboratory findings and other evidence.” 20 C.F.R. § 404.1529(a). Here, the
ALJ discounted Dunning’s testimony regarding the extent of his pain and
symptoms because he continues to engage in a wide range of daily activities, his
uveitis episodes responded well to topical steroids, and he was not currently taking
any medications.
3. Lastly, the ALJ did not err by discounting the lay witness statements
describing Dunning’s LED sensitivity. The ALJ concluded that the lay witness
testimony was contradicted by other evidence—namely that Dunning continued to
work from December 2016 to July 2017 and participated in many daily activities—
and noted that the testimony “appear[ed] to be based on [Dunning’s] subjective
complaints rather than on objective medical evidence.”
AFFIRMED.
4
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 22 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 22 2025 MOLLY C.
02COLVIN*, Acting Commissioner of Social Security, Defendant-Appellee.
03Mosman, Presiding Submitted January 16, 2025*** San Francisco, California * Carolyn W.
04Colvin is substituted for her predecessor Martin O’Malley, Commissioner of the Social Security Administration, as Acting Commissioner of the Social Security Administration, pursuant to Federal Rule of Appellate Procedure 43(c).
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 22 2025 MOLLY C.
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This case was decided on January 22, 2025.
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